{"title":"Athena","description":"\u003ch2\u003eItalian Engineering Excellence Since 1973\u003c\/h2\u003e\n\n\u003cp\u003eAthena S.p.A. was founded in 1973 when Giovanni Mancassola established a small workshop in Alonte, Italy to manufacture engine gaskets. He named his company after the Greek goddess of war—a bold declaration of intent to dominate the industry. Over fifty years later, Athena has grown into an international group with approximately 1,000 employees, facilities in Italy, Spain, Brazil, India, China, and the United States, and €160 million in annual revenue. The company is an official OEM supplier to Ducati, Fantic, KTM, Piaggio, and Triumph, developing electronic control units, gaskets, and cylinders for these leading manufacturers.\u003c\/p\u003e\n\n\u003cp\u003eIn 2000, Athena acquired Eurocilindro and entered the motocross cylinder market. Just four years later, Athena cylinders won their first world championship with legendary rider Stefan Everts claiming the MX1 title. The company then acquired GET, an electronics division dedicated to developing CDIs and ECUs for the powersports industry. Today, Athena offers a complete ecosystem of engine components and electronics tested with the best teams in MXGP and AMA championships.\u003c\/p\u003e\n\n\u003ch3\u003eGasket Kits\u003c\/h3\u003e\n\n\u003cp\u003eWith over 7,000 gasket kits and loose seals available, Athena has been a world leader in gasket production for over 40 years. The R\u0026amp;D team uses only quality raw materials with certified production, constantly developing the best sealing materials for different thermal and mechanical stress applications. Gasket types include rubberized sheets, reinforced materials, asbestos-free compounds, and paper—each selected for specific temperature and pressure requirements.\u003c\/p\u003e\n\n\u003cp\u003eComplete engine gasket kits include all essential components for engine overhaul. Top end gasket kits cover head and thermal section rebuilds. Engine oil seal series provide all seals required for overhaul. Water pump gasket kits include everything needed for water pump repair. Multi-layered gaskets feature Gas-Stopper technology to prevent combustion chamber leakage. Laser cutting and die stamping ensure precision across single and multi-layer configurations.\u003c\/p\u003e\n\n\u003ch3\u003eCylinder Kits\u003c\/h3\u003e\n\n\u003cp\u003eAthena cylinders are entirely engineered in Italy by the R\u0026amp;D department using cutting-edge design tools and rigorous testing protocols. All cylinders are coated with Motor-Nicksil—a proprietary nickel-silicon coating developed by Athena for optimal smoothness and wear resistance. Technology derived from F1 and MotoGP teams is applied throughout the manufacturing process.\u003c\/p\u003e\n\n\u003cp\u003eStandard Bore Cylinder Kits provide OEM-equivalent replacement with exceptional reliability. Big Bore Cylinder Kits increase displacement for serious performance gains. Each kit includes the aluminum alloy cylinder, forged piston with pin and rings, and all necessary gaskets. Components are validated through severe bench and road testing before release. Installation requires no modifications to engine crankcases.\u003c\/p\u003e\n\n\u003cp\u003eForged aluminum pistons feature reverse extrusion forging, molybdenum disulfide screen-printed coating for reduced friction, and precision CNC machining. Undercrown designs combine fatigue resistance with optimal cooling. Piston rings are manufactured in Japan from special steel with chromium nitride PVD coating for low friction and extended life.\u003c\/p\u003e\n\n\u003ch3\u003eGET Electronics\u003c\/h3\u003e\n\n\u003cp\u003eGET is Athena's electronic division, a leading manufacturer of ECUs and data acquisition systems for two, three, and four-wheel vehicles. The team of experienced designers and engineers provides software, hardware, vehicle analysis, testing, technical consultancy, and training. GET products power championship-winning bikes in MXGP, AMA Supercross, and AMA Motocross.\u003c\/p\u003e\n\n\u003cp\u003eSX1 PRO ECUs represent the pinnacle of motorcycle electronics for 2-stroke and 4-stroke fuel-injected engines. Features include cutting-edge 32-bit ST processors, built-in barometric pressure sensors for automatic elevation compensation, and full CANbus functionality. Wi-Fi COM allows smartphone tuning of injection, ignition timing, and rev limits without laptops. Monitor 2.0 displays real-time OBD2 data including RPM, coolant temp, intake air temp, battery voltage, and barometric pressure.\u003c\/p\u003e\n\n\u003cp\u003eRX1 PRO ECUs deliver plug-and-play performance with pre-installed racing mappings optimized for standard engines with racing exhausts. Compatible with Maya programming software for complete customization of injection timing, ignition timing, rev limiters, and electronic gear shift cut-off times. GPA traction control technology manages power delivery without additional sensors. LC-GPA launch control integrates with traction control for optimal starting strategy.\u003c\/p\u003e\n\n\u003cp\u003eCDI ECUs for carbureted 2-stroke engines remain the best-selling units in their market segment, providing reliable ignition control for older platforms.\u003c\/p\u003e\n\n\u003ch3\u003eAdditional Components\u003c\/h3\u003e\n\n\u003cp\u003eAthena offers crankshafts, connecting rods, engine bearings, and piston rings manufactured with CNC machining and cutting-edge equipment. Fork seals, oil seals, and valve seals provide OEM-quality replacement for suspension and engine applications. V-belts, air filters, and crankcases round out the comprehensive catalog covering virtually every engine rebuild need.\u003c\/p\u003e\n\n\u003ch3\u003eQuality \u0026amp; Testing\u003c\/h3\u003e\n\n\u003cp\u003eAthena conducts thorough FEM analyses to simulate component stiffness and strength. Fuji paper testing monitors pressure distribution on sealing surfaces for perfect mounting and optimal sealing efficiency. All products undergo bench testing and track testing with championship-level racing teams before release. The combination of tradition, research, and development delivers products trusted by professionals worldwide.\u003c\/p\u003e\n\n\u003ch3\u003eVehicle Coverage\u003c\/h3\u003e\n\n\u003cp\u003eWe stock Athena gaskets, cylinder kits, and electronics for Honda, Yamaha, Kawasaki, Suzuki, KTM, Husqvarna, Gas Gas, Beta, Sherco, Fantic, Ducati, Triumph, and more. From 50cc scooters to 450cc motocross machines, Athena has engine components engineered for your application.\u003c\/p\u003e\n\n\u003cp\u003eShop the complete Athena collection at Dune Goons. Fast shipping from Oregon.\u003c\/p\u003e","products":[{"product_id":"banshee-athena-68mm-cylinders-392-big-bore-complete-rebuilt-motor-engine-rebuild","title":"Banshee 392cc Athena 68mm Big Bore Engine Rebuild Kit (Stock Crank) (1987-2012)","description":"\u003ch1 data-start=\"287\" data-end=\"372\"\u003eYamaha Banshee 68 mm Big Bore Complete Engine Rebuild Kit – Athena \u0026amp; Hot Rods\u003c\/h1\u003e\n\u003cp data-start=\"374\" data-end=\"797\"\u003eUnleash legendary Banshee power with this \u003cstrong data-start=\"416\" data-end=\"459\"\u003ecomplete top and bottom end rebuild kit\u003c\/strong\u003e, combining the precision of \u003cstrong data-start=\"488\" data-end=\"528\"\u003eAthena’s 68 mm Big Bore Cylinder Kit\u003c\/strong\u003e with the proven durability of \u003cstrong data-start=\"559\" data-end=\"587\"\u003eHot Rods’ Bottom End Kit\u003c\/strong\u003e.\u003cbr data-start=\"588\" data-end=\"591\"\u003eThis all-in-one package delivers everything needed for a full performance rebuild — from crankshaft to cylinders — giving your twin-cylinder 350 the torque, throttle response, and reliability it deserves.\u003c\/p\u003e\n\u003cp data-start=\"799\" data-end=\"955\"\u003eNo need to piece together components — this complete setup ensures proper fitment, matched compression, and OEM-level gasket sealing right out of the box.\u003c\/p\u003e\n\u003chr data-start=\"957\" data-end=\"960\"\u003e\n\u003ch3 data-start=\"962\" data-end=\"985\"\u003e✅ What’s Included\u003c\/h3\u003e\n\u003cp data-start=\"987\" data-end=\"1042\"\u003e\u003cstrong data-start=\"987\" data-end=\"1040\"\u003eAthena 68 mm Big Bore Top End Kit (P400485100024)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1043\" data-end=\"1330\"\u003e\n\u003cli data-start=\"1043\" data-end=\"1093\"\u003e\n\u003cp data-start=\"1045\" data-end=\"1093\"\u003eAluminum cylinders with nickel-carbide plating\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1094\" data-end=\"1146\"\u003e\n\u003cp data-start=\"1096\" data-end=\"1146\"\u003eBillet aluminum head with removable bronze domes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1147\" data-end=\"1212\"\u003e\n\u003cp data-start=\"1149\" data-end=\"1212\"\u003e(2) 68 mm cast-lite flat-top piston kits (rings, pins, clips)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1213\" data-end=\"1279\"\u003e\n\u003cp data-start=\"1215\" data-end=\"1279\"\u003eHigh-performance hard-anodized power valves \u003cem data-start=\"1259\" data-end=\"1277\"\u003e(non-OEM design)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1280\" data-end=\"1330\"\u003e\n\u003cp data-start=\"1282\" data-end=\"1330\"\u003eTop-end gasket set with all seals and hardware\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1332\" data-end=\"1371\"\u003e\u003cstrong data-start=\"1332\" data-end=\"1369\"\u003eHot Rods Bottom End Kit (CBK0039)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1372\" data-end=\"1550\"\u003e\n\u003cli data-start=\"1372\" data-end=\"1405\"\u003e\n\u003cp data-start=\"1374\" data-end=\"1405\"\u003eComplete assembled crankshaft\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1406\" data-end=\"1439\"\u003e\n\u003cp data-start=\"1408\" data-end=\"1439\"\u003eMain bearings and crank seals\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1440\" data-end=\"1500\"\u003e\n\u003cp data-start=\"1442\" data-end=\"1500\"\u003eFull bottom-end gasket set for complete rebuild coverage\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1501\" data-end=\"1550\"\u003e\n\u003cp data-start=\"1503\" data-end=\"1550\"\u003eReady to install – no case machining required\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1552\" data-end=\"1555\"\u003e\n\u003ch3 data-start=\"1557\" data-end=\"1573\"\u003e📦 Fitment\u003c\/h3\u003e\n\u003cul data-start=\"1574\" data-end=\"1756\"\u003e\n\u003cli data-start=\"1574\" data-end=\"1615\"\u003e\n\u003cp data-start=\"1576\" data-end=\"1615\"\u003e\u003cstrong data-start=\"1576\" data-end=\"1613\"\u003eYamaha Banshee YFZ350 (1987–2012)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1616\" data-end=\"1665\"\u003e\n\u003cp data-start=\"1618\" data-end=\"1665\"\u003eDirect bolt-on kit for all years and editions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1666\" data-end=\"1728\"\u003e\n\u003cp data-start=\"1668\" data-end=\"1728\"\u003eWorks with stock or aftermarket carbs, reeds, and exhausts\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1729\" data-end=\"1756\"\u003e\n\u003cp data-start=\"1731\" data-end=\"1756\"\u003eNo case boring required\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1758\" data-end=\"1761\"\u003e\n\u003ch3 data-start=\"1763\" data-end=\"1786\"\u003e🛡️ Warranty Info\u003c\/h3\u003e\n\u003cul data-start=\"1787\" data-end=\"1977\"\u003e\n\u003cli data-start=\"1787\" data-end=\"1856\"\u003e\n\u003cp data-start=\"1789\" data-end=\"1856\"\u003e\u003cstrong data-start=\"1789\" data-end=\"1800\"\u003eAthena:\u003c\/strong\u003e 1-year limited warranty against manufacturing defects\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1857\" data-end=\"1977\"\u003e\n\u003cp data-start=\"1859\" data-end=\"1977\"\u003e\u003cstrong data-start=\"1859\" data-end=\"1872\"\u003eHot Rods:\u003c\/strong\u003e 1-year limited warranty on crankshaft assembly and bearings\u003cbr data-start=\"1932\" data-end=\"1935\"\u003e\u003cem data-start=\"1935\" data-end=\"1975\"\u003eProfessional installation recommended.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1979\" data-end=\"1982\"\u003e\n\u003ch3 data-start=\"1984\" data-end=\"2005\"\u003e🔑 Key Features\u003c\/h3\u003e\n\u003cul data-start=\"2006\" data-end=\"2356\"\u003e\n\u003cli data-start=\"2006\" data-end=\"2071\"\u003e\n\u003cp data-start=\"2008\" data-end=\"2071\"\u003eComplete top \u0026amp; bottom rebuild – everything from crank to head\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2072\" data-end=\"2128\"\u003e\n\u003cp data-start=\"2074\" data-end=\"2128\"\u003eGenuine \u003cstrong data-start=\"2082\" data-end=\"2103\"\u003eAthena \u0026amp; Hot Rods\u003c\/strong\u003e performance components\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2129\" data-end=\"2190\"\u003e\n\u003cp data-start=\"2131\" data-end=\"2190\"\u003e68 mm big bore delivers stronger mid-range and peak power\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2191\" data-end=\"2243\"\u003e\n\u003cp data-start=\"2193\" data-end=\"2243\"\u003eHigh-flow power valves and precision-fit pistons\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2244\" data-end=\"2299\"\u003e\n\u003cp data-start=\"2246\" data-end=\"2299\"\u003eOEM-quality gaskets for long-term sealing integrity\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2300\" data-end=\"2356\"\u003e\n\u003cp data-start=\"2302\" data-end=\"2356\"\u003ePerfect base for mild trail or full dune-race builds\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2358\" data-end=\"2361\"\u003e\n\u003ch3 data-start=\"2363\" data-end=\"2383\"\u003e💲 Price \u0026amp; SKU\u003c\/h3\u003e\n\u003cp data-start=\"2384\" data-end=\"2489\"\u003e\u003cstrong data-start=\"2384\" data-end=\"2401\"\u003eRetail Price:\u003c\/strong\u003e $1,890.90\u003cbr data-start=\"2411\" data-end=\"2414\"\u003e\u003cstrong data-start=\"2414\" data-end=\"2422\"\u003eSKU:\u003c\/strong\u003e BANSHEE-ATHENA-68BB-FULL\u003cbr data-start=\"2447\" data-end=\"2450\"\u003e\u003cstrong data-start=\"2450\" data-end=\"2480\"\u003eEstimated Shipping Weight:\u003c\/strong\u003e 28 lbs\u003c\/p\u003e\n\u003cp data-start=\"2491\" data-end=\"2541\"\u003eShips next business day from our U.S. warehouse.\u003c\/p\u003e","brand":"Dune Goons @ WPS","offers":[{"title":"Yes I'll do the Cool head upgrade please \/ Yes I need to get Valves too please","offer_id":47291793834209,"sku":"284383227009","price":2689.0,"currency_code":"USD","in_stock":true},{"title":"Yes I'll do the Cool head upgrade please \/ No I already have a good upgraded valve to go with this setup.","offer_id":47291793866977,"sku":"284383227010","price":2149.0,"currency_code":"USD","in_stock":true},{"title":"No the Athena Head will work great with this setup \/ Yes I need to get Valves too please","offer_id":47291793899745,"sku":"284383227011","price":2397.0,"currency_code":"USD","in_stock":true},{"title":"No the Athena Head will work great with this setup \/ No I already have a good upgraded valve to go with this setup.","offer_id":47291793932513,"sku":"284383227012","price":1890.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/banshee-392cc-athena-68mm-big-bore-engine-rebuild-kit-stock-crank-6123419.jpg?v=1763570113"},{"product_id":"21-22-kx-450-f-piston-kit-with-gaskets-kx450f-athena","title":"21-22 KX 450 F Piston Kit with Gaskets - 95.97 mm - KX450F - Athena (2021-2022)","description":"\u003cul class=\"mb-4 mt-2 pl-3\" data-mce-fragment=\"1\" _ngcontent-hgm-c33=\"\"\u003e\n\u003cli class=\"feature-bullet font-weight-light ng-star-inserted\" data-mce-fragment=\"1\" _ngcontent-hgm-c33=\"\"\u003eMade of high-performance aluminum alloy with high silicon content that guarantee the same reliability of the OE piston, while at the same time providing greater resistance and excellent performance\u003c\/li\u003e\n\u003cli class=\"feature-bullet font-weight-light ng-star-inserted\" data-mce-fragment=\"1\" _ngcontent-hgm-c33=\"\"\u003eThe smooth profile ensures a regular flow and the perfect flame propagation\u003c\/li\u003e\n\u003cli class=\"feature-bullet font-weight-light ng-star-inserted\" data-mce-fragment=\"1\" _ngcontent-hgm-c33=\"\"\u003eThe pistons for 4-stroke Off-Road motorcycles are made by reverse extrusion and produced numerical control (CNC) machines\u003c\/li\u003e\n\u003cli class=\"feature-bullet font-weight-light ng-star-inserted\" data-mce-fragment=\"1\" _ngcontent-hgm-c33=\"\"\u003ePiston rings create less friction with the cylinder and therefore a higher performance. The segments included, made in Japan, have a wear-resistant coatings (PVD or chromium nitride) to increase the retain and the durability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 class=\"border-bottom border-primary pb-2 mb-3 title-2\" _ngcontent-hgm-c33=\"\"\u003eSpecs\u003c\/h2\u003e\n\u003ctable class=\"mb-4 mt-2 table-bordered table-sm w-100\" _ngcontent-hgm-c33=\"\"\u003e\n\u003ctbody class=\"text-uppercase\" _ngcontent-hgm-c33=\"\"\u003e\n\u003ctr class=\"ng-star-inserted\" _ngcontent-hgm-c33=\"\"\u003e\n\u003ctd class=\"bg-lighter w-50\" _ngcontent-hgm-c33=\"\"\u003e\u003csmall class=\"font-weight-bold\" _ngcontent-hgm-c33=\"\"\u003ePRODUCT NAME\u003c\/small\u003e\u003c\/td\u003e\n\u003ctd _ngcontent-hgm-c33=\"\"\u003e\u003csmall class=\"font-weight-light\" _ngcontent-hgm-c33=\"\"\u003ePISTON KIT\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"ng-star-inserted\" _ngcontent-hgm-c33=\"\"\u003e\n\u003ctd class=\"bg-lighter w-50\" _ngcontent-hgm-c33=\"\"\u003e\u003csmall class=\"font-weight-bold\" _ngcontent-hgm-c33=\"\"\u003eTYPE\u003c\/small\u003e\u003c\/td\u003e\n\u003ctd _ngcontent-hgm-c33=\"\"\u003e\u003csmall class=\"font-weight-light\" _ngcontent-hgm-c33=\"\"\u003eTOP END\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"ng-star-inserted\" _ngcontent-hgm-c33=\"\"\u003e\n\u003ctd class=\"bg-lighter w-50\" _ngcontent-hgm-c33=\"\"\u003e\u003csmall class=\"font-weight-bold\" _ngcontent-hgm-c33=\"\"\u003eMODEL\u003c\/small\u003e\u003c\/td\u003e\n\u003ctd _ngcontent-hgm-c33=\"\"\u003e\u003csmall class=\"font-weight-light\" _ngcontent-hgm-c33=\"\"\u003eA\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"ng-star-inserted\" _ngcontent-hgm-c33=\"\"\u003e\n\u003ctd class=\"bg-lighter w-50\" _ngcontent-hgm-c33=\"\"\u003e\u003csmall class=\"font-weight-bold\" _ngcontent-hgm-c33=\"\"\u003ePISTON MATERIAL\u003c\/small\u003e\u003c\/td\u003e\n\u003ctd _ngcontent-hgm-c33=\"\"\u003e\u003csmall class=\"font-weight-light\" _ngcontent-hgm-c33=\"\"\u003eALUMINUM ALLOY \/ FORGED\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"ng-star-inserted\" _ngcontent-hgm-c33=\"\"\u003e\n\u003ctd class=\"bg-lighter w-50\" _ngcontent-hgm-c33=\"\"\u003e\u003csmall class=\"font-weight-bold\" _ngcontent-hgm-c33=\"\"\u003eBORE SIZE\u003c\/small\u003e\u003c\/td\u003e\n\u003ctd _ngcontent-hgm-c33=\"\"\u003e\u003csmall class=\"font-weight-light\" _ngcontent-hgm-c33=\"\"\u003e95.97 MM\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"ng-star-inserted\" _ngcontent-hgm-c33=\"\"\u003e\n\u003ctd class=\"bg-lighter w-50\" _ngcontent-hgm-c33=\"\"\u003e\u003csmall class=\"font-weight-bold\" _ngcontent-hgm-c33=\"\"\u003eCOMPRESSION RATIO\u003c\/small\u003e\u003c\/td\u003e\n\u003ctd _ngcontent-hgm-c33=\"\"\u003e\u003csmall class=\"font-weight-light\" _ngcontent-hgm-c33=\"\"\u003e12.5:1\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"ng-star-inserted\" _ngcontent-hgm-c33=\"\"\u003e\n\u003ctd class=\"bg-lighter w-50\" _ngcontent-hgm-c33=\"\"\u003e\u003csmall class=\"font-weight-bold\" _ngcontent-hgm-c33=\"\"\u003eDISPLACEMENT\u003c\/small\u003e\u003c\/td\u003e\n\u003ctd _ngcontent-hgm-c33=\"\"\u003e\u003csmall class=\"font-weight-light\" _ngcontent-hgm-c33=\"\"\u003e450 CC\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"ng-star-inserted\" _ngcontent-hgm-c33=\"\"\u003e\n\u003ctd class=\"bg-lighter w-50\" _ngcontent-hgm-c33=\"\"\u003e\u003csmall class=\"font-weight-bold\" _ngcontent-hgm-c33=\"\"\u003eENGINE TYPE\u003c\/small\u003e\u003c\/td\u003e\n\u003ctd _ngcontent-hgm-c33=\"\"\u003e\u003csmall class=\"font-weight-light\" _ngcontent-hgm-c33=\"\"\u003e4-STROKE\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"ng-star-inserted\" _ngcontent-hgm-c33=\"\"\u003e\n\u003ctd class=\"bg-lighter w-50\" _ngcontent-hgm-c33=\"\"\u003e\u003csmall class=\"font-weight-bold\" _ngcontent-hgm-c33=\"\"\u003eUNITS\u003c\/small\u003e\u003c\/td\u003e\n\u003ctd _ngcontent-hgm-c33=\"\"\u003e\u003csmall class=\"font-weight-light\" _ngcontent-hgm-c33=\"\"\u003eKIT\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"ng-star-inserted\" _ngcontent-hgm-c33=\"\"\u003e\n\u003ctd class=\"bg-lighter w-50\" _ngcontent-hgm-c33=\"\"\u003e\u003csmall class=\"font-weight-bold\" _ngcontent-hgm-c33=\"\"\u003eRIDING STYLE\u003c\/small\u003e\u003c\/td\u003e\n\u003ctd _ngcontent-hgm-c33=\"\"\u003e\u003csmall class=\"font-weight-light\" _ngcontent-hgm-c33=\"\"\u003eOFF-ROAD\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"align-items-baseline d-flex mb-2\" _ngcontent-hgm-c22=\"\"\u003e\n\u003cdiv _ngcontent-hgm-c22=\"\"\u003e\n\u003ch2 class=\"mb-0 pb-1 title-2\" _ngcontent-hgm-c22=\"\"\u003eFitments\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-responsive-sm\" _ngcontent-hgm-c22=\"\"\u003e\n\u003ctable class=\"table table-striped mb-4\" _ngcontent-hgm-c22=\"\"\u003e\n\u003cthead _ngcontent-hgm-c22=\"\"\u003e\n\u003ctr class=\"bg-light\" _ngcontent-hgm-c22=\"\"\u003e\n\u003cth class=\"bg-none text-nowrap pointer pt-4\" scope=\"col\" _ngcontent-hgm-c22=\"\"\u003e\n\u003cdiv class=\"d-flex align-items-center\" _ngcontent-hgm-c22=\"\"\u003e\n\u003cinput class=\"form-control form-control-sm mr-2\" aria-label=\"Filter by year\" placeholder=\"Filter by year\" pattern=\"^\\d+$\" type=\"text\" _ngcontent-hgm-c22=\"\"\u003e\n\u003cdiv class=\"sortable-column-indicator d-inline-block ng-star-inserted\" _ngcontent-hgm-c21=\"\"\u003e\n\u003cspan class=\"icon icon-arrow-down\" _ngcontent-hgm-c21=\"\"\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/th\u003e\n\u003cth class=\"bg-none text-nowrap pointer pt-4\" scope=\"col\" _ngcontent-hgm-c22=\"\"\u003e\n\u003cdiv class=\"d-flex align-items-center\" _ngcontent-hgm-c22=\"\"\u003e\n\u003cinput class=\"form-control form-control-sm mr-2\" aria-label=\"Filter by make\" placeholder=\"Filter by make\" type=\"text\" _ngcontent-hgm-c22=\"\"\u003e\n\u003cdiv class=\"sortable-column-indicator text-muted d-inline-block ng-star-inserted\" _ngcontent-hgm-c21=\"\"\u003e\n\u003cspan class=\"icon icon-arrow-down\" _ngcontent-hgm-c21=\"\"\u003e\u003c\/span\u003e\u003cspan class=\"icon icon-arrow-up\" _ngcontent-hgm-c21=\"\"\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/th\u003e\n\u003cth class=\"bg-none text-nowrap pointer pt-4\" scope=\"col\" _ngcontent-hgm-c22=\"\"\u003e\n\u003cdiv class=\"d-flex align-items-center\" _ngcontent-hgm-c22=\"\"\u003e\n\u003cinput class=\"form-control form-control-sm mr-2\" aria-label=\"Filter by model\" placeholder=\"Filter by model\" type=\"text\" _ngcontent-hgm-c22=\"\"\u003e\n\u003cdiv class=\"sortable-column-indicator text-muted d-inline-block ng-star-inserted\" _ngcontent-hgm-c21=\"\"\u003e\n\u003cspan class=\"icon icon-arrow-down\" _ngcontent-hgm-c21=\"\"\u003e\u003c\/span\u003e\u003cspan class=\"icon icon-arrow-up\" _ngcontent-hgm-c21=\"\"\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/th\u003e\n\u003cth class=\"text-nowrap pt-4\" scope=\"col\" _ngcontent-hgm-c22=\"\"\u003ePOSITION\u003c\/th\u003e\n\u003cth class=\"text-nowrap pt-4\" scope=\"col\" _ngcontent-hgm-c22=\"\"\u003eNOTES\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody class=\"ng-star-inserted\" _ngcontent-hgm-c22=\"\"\u003e\n\u003ctr class=\"ng-star-inserted\" _ngcontent-hgm-c22=\"\"\u003e\n\u003ctd _ngcontent-hgm-c22=\"\"\u003e2021-2022\u003c\/td\u003e\n\u003ctd _ngcontent-hgm-c22=\"\"\u003eKawasaki\u003c\/td\u003e\n\u003ctd _ngcontent-hgm-c22=\"\"\u003eKX 450 F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e","brand":"Parts Unlimited","offers":[{"title":"Default Title","offer_id":44345055641825,"sku":"0903-1750","price":263.07,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/21-22-kx-450-f-piston-kit-with-gaskets-9597-mm-kx450f-athena-3618492.png?v=1763570730"},{"product_id":"21-22-kx-450-f-piston-kit-with-gaskets-95-98-mm-kx450f-athena","title":"21-22 KX 450 F Piston Kit with Gaskets - 95.98 mm - KX450F - Athena (2021-2022)","description":"\u003ch2 class=\"border-bottom border-primary pb-2 mb-3 title-2\" data-mce-fragment=\"1\" _ngcontent-hgm-c33=\"\"\u003eFeatures\u003c\/h2\u003e\n\u003cul class=\"mb-4 mt-2 pl-3\" data-mce-fragment=\"1\" _ngcontent-hgm-c33=\"\"\u003e\n\u003cli class=\"feature-bullet font-weight-light ng-star-inserted\" data-mce-fragment=\"1\" _ngcontent-hgm-c33=\"\"\u003eMade of high-performance aluminum alloy with high silicon content that guarantee the same reliability of the OE piston, while at the same time providing greater resistance and excellent performance\u003c\/li\u003e\n\u003cli class=\"feature-bullet font-weight-light ng-star-inserted\" data-mce-fragment=\"1\" _ngcontent-hgm-c33=\"\"\u003eThe smooth profile ensures a regular flow and the perfect flame propagation\u003c\/li\u003e\n\u003cli class=\"feature-bullet font-weight-light ng-star-inserted\" data-mce-fragment=\"1\" _ngcontent-hgm-c33=\"\"\u003eThe pistons for 4-stroke Off-Road motorcycles are made by reverse extrusion and produced numerical control (CNC) machines\u003c\/li\u003e\n\u003cli class=\"feature-bullet font-weight-light ng-star-inserted\" data-mce-fragment=\"1\" _ngcontent-hgm-c33=\"\"\u003ePiston rings create less friction with the cylinder and therefore a higher performance. The segments included, Made in Japan, have a wear-resistant coatings (PVD or chromium nitride) to increase the retain and the durability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 class=\"border-bottom border-primary pb-2 mb-3 title-2\" _ngcontent-hgm-c33=\"\"\u003eSpecs\u003c\/h2\u003e\n\u003ctable class=\"mb-4 mt-2 table-bordered table-sm w-100\" _ngcontent-hgm-c33=\"\"\u003e\n\u003ctbody class=\"text-uppercase\" _ngcontent-hgm-c33=\"\"\u003e\n\u003ctr class=\"ng-star-inserted\" _ngcontent-hgm-c33=\"\"\u003e\n\u003ctd class=\"bg-lighter w-50\" _ngcontent-hgm-c33=\"\"\u003e\u003csmall class=\"font-weight-bold\" _ngcontent-hgm-c33=\"\"\u003ePRODUCT NAME\u003c\/small\u003e\u003c\/td\u003e\n\u003ctd _ngcontent-hgm-c33=\"\"\u003e\u003csmall class=\"font-weight-light\" _ngcontent-hgm-c33=\"\"\u003ePISTON KIT\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"ng-star-inserted\" _ngcontent-hgm-c33=\"\"\u003e\n\u003ctd class=\"bg-lighter w-50\" _ngcontent-hgm-c33=\"\"\u003e\u003csmall class=\"font-weight-bold\" _ngcontent-hgm-c33=\"\"\u003eTYPE\u003c\/small\u003e\u003c\/td\u003e\n\u003ctd _ngcontent-hgm-c33=\"\"\u003e\u003csmall class=\"font-weight-light\" _ngcontent-hgm-c33=\"\"\u003eTOP END\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"ng-star-inserted\" _ngcontent-hgm-c33=\"\"\u003e\n\u003ctd class=\"bg-lighter w-50\" _ngcontent-hgm-c33=\"\"\u003e\u003csmall class=\"font-weight-bold\" _ngcontent-hgm-c33=\"\"\u003eMODEL\u003c\/small\u003e\u003c\/td\u003e\n\u003ctd _ngcontent-hgm-c33=\"\"\u003e\u003csmall class=\"font-weight-light\" _ngcontent-hgm-c33=\"\"\u003eB\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"ng-star-inserted\" _ngcontent-hgm-c33=\"\"\u003e\n\u003ctd class=\"bg-lighter w-50\" _ngcontent-hgm-c33=\"\"\u003e\u003csmall class=\"font-weight-bold\" _ngcontent-hgm-c33=\"\"\u003ePISTON MATERIAL\u003c\/small\u003e\u003c\/td\u003e\n\u003ctd _ngcontent-hgm-c33=\"\"\u003e\u003csmall class=\"font-weight-light\" _ngcontent-hgm-c33=\"\"\u003eFORGED \/ ALUMINUM ALLOY\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"ng-star-inserted\" _ngcontent-hgm-c33=\"\"\u003e\n\u003ctd class=\"bg-lighter w-50\" _ngcontent-hgm-c33=\"\"\u003e\u003csmall class=\"font-weight-bold\" _ngcontent-hgm-c33=\"\"\u003eBORE SIZE\u003c\/small\u003e\u003c\/td\u003e\n\u003ctd _ngcontent-hgm-c33=\"\"\u003e\u003csmall class=\"font-weight-light\" _ngcontent-hgm-c33=\"\"\u003e95.98 MM\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"ng-star-inserted\" _ngcontent-hgm-c33=\"\"\u003e\n\u003ctd class=\"bg-lighter w-50\" _ngcontent-hgm-c33=\"\"\u003e\u003csmall class=\"font-weight-bold\" _ngcontent-hgm-c33=\"\"\u003eCOMPRESSION RATIO\u003c\/small\u003e\u003c\/td\u003e\n\u003ctd _ngcontent-hgm-c33=\"\"\u003e\u003csmall class=\"font-weight-light\" _ngcontent-hgm-c33=\"\"\u003e12.5:1\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"ng-star-inserted\" _ngcontent-hgm-c33=\"\"\u003e\n\u003ctd class=\"bg-lighter w-50\" _ngcontent-hgm-c33=\"\"\u003e\u003csmall class=\"font-weight-bold\" _ngcontent-hgm-c33=\"\"\u003eDISPLACEMENT\u003c\/small\u003e\u003c\/td\u003e\n\u003ctd _ngcontent-hgm-c33=\"\"\u003e\u003csmall class=\"font-weight-light\" _ngcontent-hgm-c33=\"\"\u003e450 CC\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"ng-star-inserted\" _ngcontent-hgm-c33=\"\"\u003e\n\u003ctd class=\"bg-lighter w-50\" _ngcontent-hgm-c33=\"\"\u003e\u003csmall class=\"font-weight-bold\" _ngcontent-hgm-c33=\"\"\u003eENGINE TYPE\u003c\/small\u003e\u003c\/td\u003e\n\u003ctd _ngcontent-hgm-c33=\"\"\u003e\u003csmall class=\"font-weight-light\" _ngcontent-hgm-c33=\"\"\u003e4-STROKE\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"ng-star-inserted\" _ngcontent-hgm-c33=\"\"\u003e\n\u003ctd class=\"bg-lighter w-50\" _ngcontent-hgm-c33=\"\"\u003e\u003csmall class=\"font-weight-bold\" _ngcontent-hgm-c33=\"\"\u003eUNITS\u003c\/small\u003e\u003c\/td\u003e\n\u003ctd _ngcontent-hgm-c33=\"\"\u003e\u003csmall class=\"font-weight-light\" _ngcontent-hgm-c33=\"\"\u003eKIT\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"ng-star-inserted\" _ngcontent-hgm-c33=\"\"\u003e\n\u003ctd class=\"bg-lighter w-50\" _ngcontent-hgm-c33=\"\"\u003e\u003csmall class=\"font-weight-bold\" _ngcontent-hgm-c33=\"\"\u003eRIDING STYLE\u003c\/small\u003e\u003c\/td\u003e\n\u003ctd _ngcontent-hgm-c33=\"\"\u003e\u003csmall class=\"font-weight-light\" _ngcontent-hgm-c33=\"\"\u003eOFF-ROAD\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"align-items-baseline d-flex mb-2\" _ngcontent-hgm-c22=\"\"\u003e\n\u003cdiv _ngcontent-hgm-c22=\"\"\u003e\n\u003ch2 class=\"mb-0 pb-1 title-2\" _ngcontent-hgm-c22=\"\"\u003eFitments\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-responsive-sm\" _ngcontent-hgm-c22=\"\"\u003e\n\u003ctable class=\"table table-striped mb-4\" _ngcontent-hgm-c22=\"\"\u003e\n\u003cthead _ngcontent-hgm-c22=\"\"\u003e\n\u003ctr class=\"bg-light\" _ngcontent-hgm-c22=\"\"\u003e\n\u003cth class=\"bg-none text-nowrap pointer pt-4\" scope=\"col\" _ngcontent-hgm-c22=\"\"\u003e\n\u003cdiv class=\"d-flex align-items-center\" _ngcontent-hgm-c22=\"\"\u003e\n\u003cinput class=\"form-control form-control-sm mr-2\" aria-label=\"Filter by year\" placeholder=\"Filter by year\" pattern=\"^\\d+$\" type=\"text\" _ngcontent-hgm-c22=\"\"\u003e\n\u003cdiv class=\"sortable-column-indicator d-inline-block ng-star-inserted\" _ngcontent-hgm-c21=\"\"\u003e\n\u003cspan class=\"icon icon-arrow-down\" _ngcontent-hgm-c21=\"\"\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/th\u003e\n\u003cth class=\"bg-none text-nowrap pointer pt-4\" scope=\"col\" _ngcontent-hgm-c22=\"\"\u003e\n\u003cdiv class=\"d-flex align-items-center\" _ngcontent-hgm-c22=\"\"\u003e\n\u003cinput class=\"form-control form-control-sm mr-2\" aria-label=\"Filter by make\" placeholder=\"Filter by make\" type=\"text\" _ngcontent-hgm-c22=\"\"\u003e\n\u003cdiv class=\"sortable-column-indicator text-muted d-inline-block ng-star-inserted\" _ngcontent-hgm-c21=\"\"\u003e\n\u003cspan class=\"icon icon-arrow-down\" _ngcontent-hgm-c21=\"\"\u003e\u003c\/span\u003e\u003cspan class=\"icon icon-arrow-up\" _ngcontent-hgm-c21=\"\"\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/th\u003e\n\u003cth class=\"bg-none text-nowrap pointer pt-4\" scope=\"col\" _ngcontent-hgm-c22=\"\"\u003e\n\u003cdiv class=\"d-flex align-items-center\" _ngcontent-hgm-c22=\"\"\u003e\n\u003cinput class=\"form-control form-control-sm mr-2\" aria-label=\"Filter by model\" placeholder=\"Filter by model\" type=\"text\" _ngcontent-hgm-c22=\"\"\u003e\n\u003cdiv class=\"sortable-column-indicator text-muted d-inline-block ng-star-inserted\" _ngcontent-hgm-c21=\"\"\u003e\n\u003cspan class=\"icon icon-arrow-down\" _ngcontent-hgm-c21=\"\"\u003e\u003c\/span\u003e\u003cspan class=\"icon icon-arrow-up\" _ngcontent-hgm-c21=\"\"\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/th\u003e\n\u003cth class=\"text-nowrap pt-4\" scope=\"col\" _ngcontent-hgm-c22=\"\"\u003ePOSITION\u003c\/th\u003e\n\u003cth class=\"text-nowrap pt-4\" scope=\"col\" _ngcontent-hgm-c22=\"\"\u003eNOTES\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody class=\"ng-star-inserted\" _ngcontent-hgm-c22=\"\"\u003e\n\u003ctr class=\"ng-star-inserted\" _ngcontent-hgm-c22=\"\"\u003e\n\u003ctd _ngcontent-hgm-c22=\"\"\u003e2021-2022\u003c\/td\u003e\n\u003ctd _ngcontent-hgm-c22=\"\"\u003eKawasaki\u003c\/td\u003e\n\u003ctd _ngcontent-hgm-c22=\"\"\u003eKX 450 F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e","brand":"Parts Unlimited","offers":[{"title":"Default Title","offer_id":44345068683489,"sku":"0903-1751","price":263.07,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/21-22-kx-450-f-piston-kit-with-gaskets-9598-mm-kx450f-athena-2040420.png?v=1763569999"},{"product_id":"97-04-yamaha-yz125-yz-125-54mm-54-athena-stock-bore-cylinder-top-end-piston-kit","title":"Yamaha YZ125 Athena Stock Bore Cylinder Kit (1997–2004)","description":"\u003ch1 data-start=\"116\" data-end=\"196\"\u003eYamaha YZ125 54mm Athena Stock Bore Cylinder Top End Rebuild Kit (1997–2004)\u003c\/h1\u003e\n\u003cp data-start=\"198\" data-end=\"645\"\u003e🛠️ \u003cstrong data-start=\"202\" data-end=\"217\"\u003eDescription\u003c\/strong\u003e\u003cbr data-start=\"217\" data-end=\"220\"\u003eRestore your Yamaha YZ125’s factory performance and reliability with this complete Athena Stock Bore Cylinder Kit. Designed for 1997–2004 models, this 54mm top end rebuild kit includes everything you need for a proper refresh — cylinder, piston, gaskets, head, power valves, and hardware. Built with precision-machined aluminum and nickel-carbide coating, it’s the strongest, most complete OEM-style solution on the market.\u003c\/p\u003e\n\u003cp data-start=\"647\" data-end=\"670\"\u003e✅ \u003cstrong data-start=\"649\" data-end=\"668\"\u003eWhat’s Included\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"671\" data-end=\"1075\"\u003e\n\u003cli data-start=\"671\" data-end=\"726\"\u003e\n\u003cp data-start=\"673\" data-end=\"726\"\u003eAthena 54mm OEM Stock Bore Nikasil Cylinder (125cc)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"727\" data-end=\"792\"\u003e\n\u003cp data-start=\"729\" data-end=\"792\"\u003eAthena Coated Piston Kit (piston, rings, wrist pin, circlips)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"793\" data-end=\"856\"\u003e\n\u003cp data-start=\"795\" data-end=\"856\"\u003eAthena Complete Top End Gasket Set (all seals and hardware)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"857\" data-end=\"913\"\u003e\n\u003cp data-start=\"859\" data-end=\"913\"\u003eAthena Cylinder Head w\/ removable bronze dome insert\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"914\" data-end=\"996\"\u003e\n\u003cp data-start=\"916\" data-end=\"996\"\u003eAthena High-Performance Hard Anodized Power Valves (OEM valves not compatible)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"997\" data-end=\"1021\"\u003e\n\u003cp data-start=\"999\" data-end=\"1021\"\u003eAthena Head Stud Kit\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1022\" data-end=\"1075\"\u003e\n\u003cp data-start=\"1024\" data-end=\"1075\"\u003eAll parts brand new and backed by Athena warranty\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1077\" data-end=\"1093\"\u003e📦 \u003cstrong data-start=\"1080\" data-end=\"1091\"\u003eFitment\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1094\" data-end=\"1257\"\u003e\n\u003cli data-start=\"1094\" data-end=\"1257\"\u003e\n\u003cp data-start=\"1096\" data-end=\"1121\"\u003eYamaha YZ125 (2-Stroke)\u003c\/p\u003e\n\u003cul data-start=\"1124\" data-end=\"1257\"\u003e\n\u003cli data-start=\"1124\" data-end=\"1138\"\u003e\n\u003cp data-start=\"1126\" data-end=\"1138\"\u003e1997 YZ125\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1141\" data-end=\"1155\"\u003e\n\u003cp data-start=\"1143\" data-end=\"1155\"\u003e1998 YZ125\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1158\" data-end=\"1172\"\u003e\n\u003cp data-start=\"1160\" data-end=\"1172\"\u003e1999 YZ125\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1175\" data-end=\"1189\"\u003e\n\u003cp data-start=\"1177\" data-end=\"1189\"\u003e2000 YZ125\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1192\" data-end=\"1206\"\u003e\n\u003cp data-start=\"1194\" data-end=\"1206\"\u003e2001 YZ125\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1209\" data-end=\"1223\"\u003e\n\u003cp data-start=\"1211\" data-end=\"1223\"\u003e2002 YZ125\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1226\" data-end=\"1240\"\u003e\n\u003cp data-start=\"1228\" data-end=\"1240\"\u003e2003 YZ125\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1243\" data-end=\"1257\"\u003e\n\u003cp data-start=\"1245\" data-end=\"1257\"\u003e2004 YZ125\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1259\" data-end=\"1282\"\u003e🛡️ \u003cstrong data-start=\"1263\" data-end=\"1280\"\u003eWarranty Info\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1283\" data-end=\"1505\"\u003e\n\u003cli data-start=\"1283\" data-end=\"1343\"\u003e\n\u003cp data-start=\"1285\" data-end=\"1343\"\u003eAll components covered by Athena’s manufacturer warranty\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1344\" data-end=\"1420\"\u003e\n\u003cp data-start=\"1346\" data-end=\"1420\"\u003eMust be installed by a qualified technician to ensure proper performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1421\" data-end=\"1505\"\u003e\n\u003cp data-start=\"1423\" data-end=\"1505\"\u003eWarranty does not cover improper installation, tuning errors, or break-in issues\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1507\" data-end=\"1528\"\u003e🔑 \u003cstrong data-start=\"1510\" data-end=\"1526\"\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1529\" data-end=\"1924\"\u003e\n\u003cli data-start=\"1529\" data-end=\"1578\"\u003e\n\u003cp data-start=\"1531\" data-end=\"1578\"\u003eStock bore 54mm (125cc) for OEM-spec rebuilds\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1579\" data-end=\"1643\"\u003e\n\u003cp data-start=\"1581\" data-end=\"1643\"\u003eAluminum cylinder with nickel-carbide plating for durability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1644\" data-end=\"1717\"\u003e\n\u003cp data-start=\"1646\" data-end=\"1717\"\u003eIncludes high-performance Athena power valves (cannot use OEM valves)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1718\" data-end=\"1812\"\u003e\n\u003cp data-start=\"1720\" data-end=\"1812\"\u003eCylinder head with removable bronze dome insert for optimal combustion and anti-detonation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1813\" data-end=\"1871\"\u003e\n\u003cp data-start=\"1815\" data-end=\"1871\"\u003eComplete kit with piston, gaskets, studs, and hardware\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1872\" data-end=\"1924\"\u003e\n\u003cp data-start=\"1874\" data-end=\"1924\"\u003eBolt-on installation, no case machining required\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Parts Unlimited","offers":[{"title":"Default Title","offer_id":45253776343265,"sku":"400485100003","price":1110.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/yamaha-yz125-athena-stock-bore-cylinder-kit-19972004-5789048.jpg?v=1763570271"},{"product_id":"97-04-yamaha-yz125-yz-125-58mm-144cc-athena-big-bore-cylinder-top-end-piston-kit","title":"Yamaha YZ125 144cc Athena Big Bore Kit (1997–2004)","description":"\u003cdiv class=\"row-fluid section\"\u003e\n\u003cdiv class=\"span12\"\u003e\n\u003ch1 data-start=\"87\" data-end=\"164\"\u003eYamaha YZ125 58mm 144cc Athena Big Bore Kit – Top End Rebuild (1997–2004)\u003c\/h1\u003e\n\u003cp data-start=\"166\" data-end=\"589\"\u003e🛠️ \u003cstrong data-start=\"170\" data-end=\"185\"\u003eDescription\u003c\/strong\u003e\u003cbr data-start=\"185\" data-end=\"188\"\u003eUpgrade your Yamaha YZ125 into a 144cc powerhouse with the Athena Big Bore Kit. This race-proven package includes everything you need for a full top-end rebuild, engineered for more horsepower, stronger torque, and factory-level reliability. Designed with precision machining and premium materials, it’s the ultimate bolt-on performance kit for riders who want to take their YZ125 to the next level.\u003c\/p\u003e\n\u003cp data-start=\"591\" data-end=\"614\"\u003e✅ \u003cstrong data-start=\"593\" data-end=\"612\"\u003eWhat’s Included\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"615\" data-end=\"961\"\u003e\n\u003cli data-start=\"615\" data-end=\"664\"\u003e\n\u003cp data-start=\"617\" data-end=\"664\"\u003eAthena 58mm Nikasil Big Bore Cylinder (144cc)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"665\" data-end=\"730\"\u003e\n\u003cp data-start=\"667\" data-end=\"730\"\u003eAthena Coated Piston Kit (Piston, Rings, Wrist Pin, Circlips)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"731\" data-end=\"769\"\u003e\n\u003cp data-start=\"733\" data-end=\"769\"\u003eAthena Complete Top End Gasket Set\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"770\" data-end=\"816\"\u003e\n\u003cp data-start=\"772\" data-end=\"816\"\u003eAthena Cylinder Head w\/ Bronze Dome Insert\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"817\" data-end=\"841\"\u003e\n\u003cp data-start=\"819\" data-end=\"841\"\u003eAthena Head Stud Kit\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"842\" data-end=\"899\"\u003e\n\u003cp data-start=\"844\" data-end=\"899\"\u003eAthena High-Performance Power Valves (cannot use OEM)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"900\" data-end=\"961\"\u003e\n\u003cp data-start=\"902\" data-end=\"961\"\u003eAll components brand new and covered by Athena’s warranty\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"963\" data-end=\"979\"\u003e📦 \u003cstrong data-start=\"966\" data-end=\"977\"\u003eFitment\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"980\" data-end=\"1017\"\u003e\n\u003cli data-start=\"980\" data-end=\"1017\"\u003e\n\u003cp data-start=\"982\" data-end=\"1017\"\u003eYamaha YZ125 (2-stroke) 1997–2004\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1019\" data-end=\"1042\"\u003e🛡️ \u003cstrong data-start=\"1023\" data-end=\"1040\"\u003eWarranty Info\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1043\" data-end=\"1264\"\u003e\n\u003cli data-start=\"1043\" data-end=\"1077\"\u003e\n\u003cp data-start=\"1045\" data-end=\"1077\"\u003eManufacturer warranty included\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1078\" data-end=\"1145\"\u003e\n\u003cp data-start=\"1080\" data-end=\"1145\"\u003eProfessional installation by a qualified technician is required\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1146\" data-end=\"1264\"\u003e\n\u003cp data-start=\"1148\" data-end=\"1264\"\u003eWarranty does not cover failures caused by improper installation, tuning, misuse, or incorrect break-in procedures\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1266\" data-end=\"1287\"\u003e🔑 \u003cstrong data-start=\"1269\" data-end=\"1285\"\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1288\" data-end=\"1669\"\u003e\n\u003cli data-start=\"1288\" data-end=\"1370\"\u003e\n\u003cp data-start=\"1290\" data-end=\"1370\"\u003eIncreases displacement from 125cc to 144cc for more power across the RPM range\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1371\" data-end=\"1443\"\u003e\n\u003cp data-start=\"1373\" data-end=\"1443\"\u003eAluminum cylinder with nickel-carbide coating for maximum durability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1444\" data-end=\"1529\"\u003e\n\u003cp data-start=\"1446\" data-end=\"1529\"\u003eHigh-performance anodized Athena power valves included (OEM valves will not work)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1530\" data-end=\"1606\"\u003e\n\u003cp data-start=\"1532\" data-end=\"1606\"\u003eRace-designed piston and gasket set for reliable compression and sealing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1607\" data-end=\"1669\"\u003e\n\u003cp data-start=\"1609\" data-end=\"1669\"\u003eDirect-fit kit with OEM-level reliability and service life\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"drag_area\"\u003e\n\u003cdiv class=\"row-fluid section\" id=\"description-section\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!----\u003e","brand":"Parts Unlimited","offers":[{"title":"Default Title","offer_id":45263754264801,"sku":"Fixed-0931-0258","price":900.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/yamaha-yz125-144cc-athena-big-bore-kit-19972004-5342570.webp?v=1763570270"},{"product_id":"athena-big-bore-kit-289cc-for-crf250r-crf250rx-18-24","title":"Athena Big Bore Kit 289cc for CRF250R \u0026 CRF250RX (18–24) (2018-2024)","description":"\u003ch2 data-start=\"537\" data-end=\"613\" class=\"\"\u003e🏁 Athena Big Bore Race Cylinder Kit – 289cc for CRF250R\/RX (2018–2024)\u003c\/h2\u003e\n\u003cp data-start=\"614\" data-end=\"741\" class=\"\"\u003e\u003cstrong data-start=\"614\" data-end=\"671\"\u003eFits Honda CRF250R (2018–2024) \u0026amp; CRF250RX (2019–2024)\u003c\/strong\u003e\u003cbr data-start=\"671\" data-end=\"674\"\u003e\u003cstrong data-start=\"674\" data-end=\"741\"\u003eDisplacement: 289cc | Bore Size: 85.00 mm | Compression: 13.7:1\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"743\" data-end=\"1038\" class=\"\"\u003eBoost your Honda’s power with the \u003cstrong data-start=\"777\" data-end=\"820\"\u003eAthena 289cc Big Bore Race Cylinder Kit\u003c\/strong\u003e—designed for serious off-road riders demanding maximum output, cooling, and durability. Built to race spec, this kit pushes your engine to the next level with high-performance components and expanded cooling capacity.\u003c\/p\u003e\n\u003chr data-start=\"1040\" data-end=\"1043\" class=\"\"\u003e\n\u003ch3 data-start=\"1045\" data-end=\"1068\" class=\"\"\u003e📦 What’s Included:\u003c\/h3\u003e\n\u003cul data-start=\"1069\" data-end=\"1265\"\u003e\n\u003cli data-start=\"1069\" data-end=\"1127\" class=\"\"\u003e\n\u003cp data-start=\"1071\" data-end=\"1127\" class=\"\"\u003eAluminum Cylinder with Nickel-Carbide Coating (85.00 mm)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1128\" data-end=\"1161\" class=\"\"\u003e\n\u003cp data-start=\"1130\" data-end=\"1161\" class=\"\"\u003eForged Piston with Moly Coating\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1162\" data-end=\"1228\" class=\"\"\u003e\n\u003cp data-start=\"1164\" data-end=\"1228\" class=\"\"\u003eHigh-Performance Anodized Power Valves (not compatible with OEM)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1229\" data-end=\"1265\" class=\"\"\u003e\n\u003cp data-start=\"1231\" data-end=\"1265\" class=\"\"\u003e\u003cem data-start=\"1231\" data-end=\"1265\"\u003eNote: Cylinder head not included\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1267\" data-end=\"1270\" class=\"\"\u003e\n\u003ch3 data-start=\"1272\" data-end=\"1292\" class=\"\"\u003e🔧 Key Features:\u003c\/h3\u003e\n\u003cul data-start=\"1293\" data-end=\"1755\"\u003e\n\u003cli data-start=\"1293\" data-end=\"1381\" class=\"\"\u003e\n\u003cp data-start=\"1295\" data-end=\"1381\" class=\"\"\u003e🔥 \u003cstrong data-start=\"1298\" data-end=\"1327\"\u003eRace-Ready Big Bore Power\u003c\/strong\u003e – Increases displacement to 289cc for serious gains\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1382\" data-end=\"1457\" class=\"\"\u003e\n\u003cp data-start=\"1384\" data-end=\"1457\" class=\"\"\u003e💧 \u003cstrong data-start=\"1387\" data-end=\"1411\"\u003eLarger Water Jackets\u003c\/strong\u003e – Improved cooling for extended performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1458\" data-end=\"1531\" class=\"\"\u003e\n\u003cp data-start=\"1460\" data-end=\"1531\" class=\"\"\u003e⚙️ \u003cstrong data-start=\"1463\" data-end=\"1480\"\u003eForged Piston\u003c\/strong\u003e – Durable and molybdenum-coated for low friction\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1532\" data-end=\"1606\" class=\"\"\u003e\n\u003cp data-start=\"1534\" data-end=\"1606\" class=\"\"\u003e🧪 \u003cstrong data-start=\"1537\" data-end=\"1572\"\u003eNickel-Carbide Cylinder Coating\u003c\/strong\u003e – Ultra-tough and built to last\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1607\" data-end=\"1679\" class=\"\"\u003e\n\u003cp data-start=\"1609\" data-end=\"1679\" class=\"\"\u003e🧩 \u003cstrong data-start=\"1612\" data-end=\"1633\"\u003eRace Power Valves\u003c\/strong\u003e – Custom designed, hard-anodized, high flow\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1680\" data-end=\"1755\" class=\"\"\u003e\n\u003cp data-start=\"1682\" data-end=\"1755\" class=\"\"\u003e🛠️ \u003cstrong data-start=\"1686\" data-end=\"1701\"\u003eOEM Fitment\u003c\/strong\u003e – Direct bolt-on fit (except OEM power valves \u0026amp; head)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1757\" data-end=\"1760\" class=\"\"\u003e\n\u003ch3 data-start=\"1762\" data-end=\"1782\" class=\"\"\u003e✅ Compatibility:\u003c\/h3\u003e\n\u003cul data-start=\"1783\" data-end=\"1845\"\u003e\n\u003cli data-start=\"1783\" data-end=\"1814\" class=\"\"\u003e\n\u003cp data-start=\"1785\" data-end=\"1814\" class=\"\"\u003e\u003cstrong data-start=\"1785\" data-end=\"1812\"\u003e2018–2024 Honda CRF250R\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1815\" data-end=\"1845\" class=\"\"\u003e\n\u003cp data-start=\"1817\" data-end=\"1845\" class=\"\"\u003e\u003cstrong data-start=\"1817\" data-end=\"1845\"\u003e2019–2024 Honda CRF250RX\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1847\" data-end=\"1850\" class=\"\"\u003e\n\u003ch3 data-start=\"1852\" data-end=\"1879\" class=\"\"\u003e💬 Why Choose Athena?\u003c\/h3\u003e\n\u003cp data-start=\"1880\" data-end=\"2117\" class=\"\"\u003eAthena’s Big Bore Kits are engineered in Italy for top-tier racing and off-road performance. This 289cc upgrade provides more torque, better throttle response, and serious durability—backed by decades of championship-winning engineering.\u003c\/p\u003e\n\u003ch2 role=\"link\" class=\"pointer title-2 font-weight-normal mb-2 ng-star-inserted\" tabindex=\"0\"\u003e\n\u003cbr\u003e\u003cbr\u003e\n\u003c\/h2\u003e","brand":"Parts Unlimited","offers":[{"title":"Default Title","offer_id":46415228535009,"sku":"0931-0956","price":1166.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/athena-big-bore-kit-289cc-for-crf250r-crf250rx-1824-7860279.jpg?v=1763567944"},{"product_id":"athena-piston-kit-w-gaskets-78-95mm-for-crf250r-rx-20-21","title":"Athena Piston Kit w\/ Gaskets 78.95mm for CRF250R\/RX (20–21) (2020-2021)","description":"\u003ch2 data-start=\"510\" data-end=\"596\" class=\"\"\u003e🏁 Athena Forged Piston Kit w\/ Gaskets – 78.95mm | CRF250R \u0026amp; CRF250RX (2020–2021)\u003c\/h2\u003e\n\u003cp data-start=\"597\" data-end=\"730\" class=\"\"\u003e\u003cstrong data-start=\"597\" data-end=\"654\"\u003eFits Honda CRF250R (2020–2021) \u0026amp; CRF250RX (2020–2021)\u003c\/strong\u003e\u003cbr data-start=\"654\" data-end=\"657\"\u003e\u003cstrong data-start=\"657\" data-end=\"730\"\u003eCompression Ratio: 14.1:1 | Bore Size: 78.95 mm | Displacement: 250cc\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"732\" data-end=\"962\" class=\"\"\u003eBring back full power—or upgrade it—with this race-spec \u003cstrong data-start=\"788\" data-end=\"819\"\u003eAthena Piston Kit + Gaskets\u003c\/strong\u003e. Designed for performance and precision, it’s ideal for riders who demand durability, low friction, and max output from their 4-stroke engine.\u003c\/p\u003e\n\u003chr data-start=\"964\" data-end=\"967\" class=\"\"\u003e\n\u003ch3 data-start=\"969\" data-end=\"992\" class=\"\"\u003e📦 What’s Included:\u003c\/h3\u003e\n\u003cul data-start=\"993\" data-end=\"1115\"\u003e\n\u003cli data-start=\"993\" data-end=\"1033\" class=\"\"\u003e\n\u003cp data-start=\"995\" data-end=\"1033\" class=\"\"\u003eForged 78.95mm Athena Piston (Model A)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1034\" data-end=\"1085\" class=\"\"\u003e\n\u003cp data-start=\"1036\" data-end=\"1085\" class=\"\"\u003ePiston Rings with PVD or Chromium Nitride Coating\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1086\" data-end=\"1115\" class=\"\"\u003e\n\u003cp data-start=\"1088\" data-end=\"1115\" class=\"\"\u003eComplete Top-End Gasket Set\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1117\" data-end=\"1120\" class=\"\"\u003e\n\u003ch3 data-start=\"1122\" data-end=\"1142\" class=\"\"\u003e🔧 Key Features:\u003c\/h3\u003e\n\u003cul data-start=\"1143\" data-end=\"1540\"\u003e\n\u003cli data-start=\"1143\" data-end=\"1232\" class=\"\"\u003e\n\u003cp data-start=\"1145\" data-end=\"1232\" class=\"\"\u003e🧊 \u003cstrong data-start=\"1148\" data-end=\"1171\"\u003eForged Alloy Piston\u003c\/strong\u003e – Made from high-silicon aluminum for OE-level reliability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1233\" data-end=\"1307\" class=\"\"\u003e\n\u003cp data-start=\"1235\" data-end=\"1307\" class=\"\"\u003e⚙️ \u003cstrong data-start=\"1238\" data-end=\"1254\"\u003eCNC Machined\u003c\/strong\u003e – Ensures perfect tolerances and flame propagation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1308\" data-end=\"1388\" class=\"\"\u003e\n\u003cp data-start=\"1310\" data-end=\"1388\" class=\"\"\u003e🚀 \u003cstrong data-start=\"1313\" data-end=\"1333\"\u003eHigh Compression\u003c\/strong\u003e – 14.1:1 ratio boosts performance and responsiveness\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1389\" data-end=\"1470\" class=\"\"\u003e\n\u003cp data-start=\"1391\" data-end=\"1470\" class=\"\"\u003e🔁 \u003cstrong data-start=\"1394\" data-end=\"1416\"\u003eLow-Friction Rings\u003c\/strong\u003e – Japanese-made, wear-resistant, race-ready coating\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1471\" data-end=\"1540\" class=\"\"\u003e\n\u003cp data-start=\"1473\" data-end=\"1540\" class=\"\"\u003e🧩 \u003cstrong data-start=\"1476\" data-end=\"1496\"\u003eFull Top End Kit\u003c\/strong\u003e – Includes all gaskets for a smooth rebuild\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1542\" data-end=\"1545\" class=\"\"\u003e\n\u003ch3 data-start=\"1547\" data-end=\"1567\" class=\"\"\u003e✅ Compatibility:\u003c\/h3\u003e\n\u003cul data-start=\"1568\" data-end=\"1630\"\u003e\n\u003cli data-start=\"1568\" data-end=\"1599\" class=\"\"\u003e\n\u003cp data-start=\"1570\" data-end=\"1599\" class=\"\"\u003e\u003cstrong data-start=\"1570\" data-end=\"1597\"\u003e2020–2021 Honda CRF250R\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1600\" data-end=\"1630\" class=\"\"\u003e\n\u003cp data-start=\"1602\" data-end=\"1630\" class=\"\"\u003e\u003cstrong data-start=\"1602\" data-end=\"1630\"\u003e2020–2021 Honda CRF250RX\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1632\" data-end=\"1635\" class=\"\"\u003e\n\u003ch3 data-start=\"1637\" data-end=\"1664\" class=\"\"\u003e💬 Why Choose Athena?\u003c\/h3\u003e\n\u003cp data-start=\"1665\" data-end=\"1887\" class=\"\"\u003eAthena pistons are trusted by racers worldwide for their proven performance and reliability. With cutting-edge materials, advanced CNC manufacturing, and premium gasket kits, you get a complete top-end solution that lasts.\u003c\/p\u003e\n\u003ch2 role=\"link\" class=\"pointer title-2 font-weight-normal mb-2 ng-star-inserted\" tabindex=\"0\"\u003e\n\u003cbr\u003e\u003cbr\u003e\n\u003c\/h2\u003e","brand":"Parts Unlimited","offers":[{"title":"Default Title","offer_id":46415230501089,"sku":"0903-1730","price":212.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/athena-piston-kit-w-gaskets-7895mm-for-crf250rrx-2021-6914971.jpg?v=1763569708"},{"product_id":"athena-96mm-cylinder-kit-honda-crf450r-rx-2017-2025","title":"Athena 96mm Cylinder Kit – Honda CRF450R\/RX (2017–2025)","description":"\u003cp data-start=\"197\" data-end=\"332\" class=\"\"\u003e\u003cstrong data-start=\"197\" data-end=\"256\"\u003eAthena 96mm Cylinder Kit – Honda CRF450R\/RX (2017–2025)\u003c\/strong\u003e\u003cbr data-start=\"256\" data-end=\"259\"\u003e🧱 Stock Bore | Race-Ready 4-Stroke Performance | Forged Piston + Gaskets\u003c\/p\u003e\n\u003chr data-start=\"334\" data-end=\"337\" class=\"\"\u003e\n\u003cp data-start=\"339\" data-end=\"361\" class=\"\"\u003e\u003cstrong data-start=\"339\" data-end=\"359\"\u003eWhat’s Included:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"362\" data-end=\"563\"\u003e\n\u003cli data-start=\"362\" data-end=\"410\" class=\"\"\u003e\n\u003cp data-start=\"364\" data-end=\"410\" class=\"\"\u003e1x Aluminum Cylinder (Nickel-Carbide Coated)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"411\" data-end=\"451\" class=\"\"\u003e\n\u003cp data-start=\"413\" data-end=\"451\" class=\"\"\u003e1x Forged OEM-Style Domed Piston Kit\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"452\" data-end=\"508\" class=\"\"\u003e\n\u003cp data-start=\"454\" data-end=\"508\" class=\"\"\u003e1x Top-End Gasket Set with Required Seals \u0026amp; Hardware\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"509\" data-end=\"563\" class=\"\"\u003e\n\u003cp data-start=\"511\" data-end=\"563\" class=\"\"\u003ePower Valves (Race Spec – Not Compatible with OEM)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"565\" data-end=\"596\" class=\"\"\u003e\u003cem data-start=\"565\" data-end=\"596\"\u003e⚠️ Cylinder Head Not Included\u003c\/em\u003e\u003c\/p\u003e\n\u003chr data-start=\"598\" data-end=\"601\" class=\"\"\u003e\n\u003cp data-start=\"603\" data-end=\"625\" class=\"\"\u003e\u003cstrong data-start=\"603\" data-end=\"623\"\u003e🔥 Key Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"626\" data-end=\"1123\"\u003e\n\u003cli data-start=\"626\" data-end=\"697\" class=\"\"\u003e\n\u003cp data-start=\"628\" data-end=\"697\" class=\"\"\u003e\u003cstrong data-start=\"628\" data-end=\"656\"\u003eRace-Ported Performance:\u003c\/strong\u003e Cylinder ported to Factory Works spec.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"698\" data-end=\"785\" class=\"\"\u003e\n\u003cp data-start=\"700\" data-end=\"785\" class=\"\"\u003e\u003cstrong data-start=\"700\" data-end=\"721\"\u003ePremium Coatings:\u003c\/strong\u003e Nickel-carbide plating for superior wear and heat resistance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"786\" data-end=\"866\" class=\"\"\u003e\n\u003cp data-start=\"788\" data-end=\"866\" class=\"\"\u003e\u003cstrong data-start=\"788\" data-end=\"815\"\u003eForged Piston Included:\u003c\/strong\u003e Domed OEM-style design for optimized combustion.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"867\" data-end=\"948\" class=\"\"\u003e\n\u003cp data-start=\"869\" data-end=\"948\" class=\"\"\u003e\u003cstrong data-start=\"869\" data-end=\"903\"\u003eHigh-Performance Power Valves:\u003c\/strong\u003e Hard-anodized design (non-OEM compatible).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"949\" data-end=\"1040\" class=\"\"\u003e\n\u003cp data-start=\"951\" data-end=\"1040\" class=\"\"\u003e\u003cstrong data-start=\"951\" data-end=\"975\"\u003eComplete Gasket Set:\u003c\/strong\u003e All required seals and hardware included for top-end assembly.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1041\" data-end=\"1123\" class=\"\"\u003e\n\u003cp data-start=\"1043\" data-end=\"1123\" class=\"\"\u003e\u003cstrong data-start=\"1043\" data-end=\"1064\"\u003eBuilt for Racing:\u003c\/strong\u003e High compression ratio (13.5:1) and precision engineering.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1125\" data-end=\"1128\" class=\"\"\u003e\n\u003cp data-start=\"1130\" data-end=\"1165\" class=\"\"\u003e\u003cstrong data-start=\"1130\" data-end=\"1151\"\u003e🏁 Compatibility:\u003c\/strong\u003e\u003cbr data-start=\"1151\" data-end=\"1154\"\u003e\u003cstrong data-start=\"1154\" data-end=\"1163\"\u003eHonda\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1166\" data-end=\"1210\"\u003e\n\u003cli data-start=\"1166\" data-end=\"1187\" class=\"\"\u003e\n\u003cp data-start=\"1168\" data-end=\"1187\" class=\"\"\u003e2017–2025 CRF450R\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1188\" data-end=\"1210\" class=\"\"\u003e\n\u003cp data-start=\"1190\" data-end=\"1210\" class=\"\"\u003e2017–2025 CRF450RX\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1212\" data-end=\"1215\" class=\"\"\u003e\n\u003cp data-start=\"1217\" data-end=\"1602\" class=\"\"\u003e\u003cstrong data-start=\"1217\" data-end=\"1241\"\u003eWhy Choose This Kit?\u003c\/strong\u003e\u003cbr data-start=\"1241\" data-end=\"1244\"\u003eIf you're pushing your Honda CRF450R or RX to its limits, this Athena stock bore cylinder kit is built to deliver. Designed for serious racers and weekend warriors alike, it blends factory-level porting, premium materials, and top-tier components into one complete, race-ready solution. Skip the guesswork—this kit delivers performance where it matters most.\u003c\/p\u003e\n\u003chr data-start=\"1604\" data-end=\"1607\" class=\"\"\u003e\n\u003cp data-start=\"1609\" data-end=\"1625\" class=\"\"\u003e\u003cstrong data-start=\"1609\" data-end=\"1623\"\u003e🛠️ Specs:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1626\" data-end=\"1893\"\u003e\n\u003cli data-start=\"1626\" data-end=\"1653\" class=\"\"\u003e\n\u003cp data-start=\"1628\" data-end=\"1653\" class=\"\"\u003e\u003cstrong data-start=\"1628\" data-end=\"1645\"\u003eDisplacement:\u003c\/strong\u003e 450cc\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1654\" data-end=\"1694\" class=\"\"\u003e\n\u003cp data-start=\"1656\" data-end=\"1694\" class=\"\"\u003e\u003cstrong data-start=\"1656\" data-end=\"1670\"\u003eBore Size:\u003c\/strong\u003e 96.00 mm (Stock Bore)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1695\" data-end=\"1728\" class=\"\"\u003e\n\u003cp data-start=\"1697\" data-end=\"1728\" class=\"\"\u003e\u003cstrong data-start=\"1697\" data-end=\"1719\"\u003eCompression Ratio:\u003c\/strong\u003e 13.5:1\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1729\" data-end=\"1755\" class=\"\"\u003e\n\u003cp data-start=\"1731\" data-end=\"1755\" class=\"\"\u003e\u003cstrong data-start=\"1731\" data-end=\"1744\"\u003eMaterial:\u003c\/strong\u003e Aluminum\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1756\" data-end=\"1787\" class=\"\"\u003e\n\u003cp data-start=\"1758\" data-end=\"1787\" class=\"\"\u003e\u003cstrong data-start=\"1758\" data-end=\"1770\"\u003eCoating:\u003c\/strong\u003e Nickel-Carbide\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1788\" data-end=\"1817\" class=\"\"\u003e\n\u003cp data-start=\"1790\" data-end=\"1817\" class=\"\"\u003e\u003cstrong data-start=\"1790\" data-end=\"1806\"\u003eEngine Type:\u003c\/strong\u003e 4-Stroke\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1818\" data-end=\"1836\" class=\"\"\u003e\n\u003cp data-start=\"1820\" data-end=\"1836\" class=\"\"\u003e\u003cstrong data-start=\"1820\" data-end=\"1830\"\u003eUnits:\u003c\/strong\u003e Kit\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1837\" data-end=\"1862\" class=\"\"\u003e\n\u003cp data-start=\"1839\" data-end=\"1862\" class=\"\"\u003e\u003cstrong data-start=\"1839\" data-end=\"1849\"\u003eStyle:\u003c\/strong\u003e Stock Bore\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1863\" data-end=\"1893\" class=\"\"\u003e\n\u003cp data-start=\"1865\" data-end=\"1893\" class=\"\"\u003e\u003cstrong data-start=\"1865\" data-end=\"1882\"\u003eRiding Style:\u003c\/strong\u003e Off-Road\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 role=\"link\" class=\"pointer title-2 font-weight-normal mb-2 ng-star-inserted\" tabindex=\"0\"\u003e\n\u003cbr\u003e\u003cbr\u003e\n\u003c\/h2\u003e","brand":"Parts Unlimited","offers":[{"title":"Default Title","offer_id":46417395810529,"sku":"0931-0957","price":772.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/athena-96mm-cylinder-kit-honda-crf450rrx-20172025-7856851.jpg?v=1763569288"},{"product_id":"banshee-athena-421cc-big-bore-kit-wiseco-pistons-cool-head","title":"Athena 68mm Big Bore Cylinder Kit – Yamaha Banshee 350 (1987–2012)","description":"\u003ch1 data-start=\"197\" data-end=\"272\"\u003eAthena 68mm Big Bore Race Cylinder Kit – Yamaha Banshee 350 (1987–2012)\u003c\/h1\u003e\n\u003ch2 data-start=\"274\" data-end=\"294\"\u003e🛠️ Description\u003c\/h2\u003e\n\u003cp data-start=\"295\" data-end=\"696\"\u003eUpgrade your Yamaha Banshee with the \u003cstrong data-start=\"332\" data-end=\"374\"\u003eAthena 68mm Big Bore Race Cylinder Kit\u003c\/strong\u003e, taking displacement to \u003cstrong data-start=\"399\" data-end=\"408\"\u003e392cc\u003c\/strong\u003e for serious performance gains. This kit includes nickel-carbide–plated aluminum cylinders, a removable bronze dome cylinder head, and Athena’s high-performance power valves designed specifically for this kit. Perfect for riders looking for reliable power in the dunes, track, or trail.\u003c\/p\u003e\n\u003ch2 data-start=\"698\" data-end=\"720\"\u003e✅ What’s Included\u003c\/h2\u003e\n\u003cul data-start=\"721\" data-end=\"1014\"\u003e\n\u003cli data-start=\"721\" data-end=\"784\"\u003e\n\u003cp data-start=\"723\" data-end=\"784\"\u003e(2) Aluminum cylinders, 68.00mm bore, nickel-carbide coated\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"785\" data-end=\"829\"\u003e\n\u003cp data-start=\"787\" data-end=\"829\"\u003eCylinder head with removable bronze dome\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"830\" data-end=\"888\"\u003e\n\u003cp data-start=\"832\" data-end=\"888\"\u003eHigh-performance, hard-anodized power valves (non-OEM)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"889\" data-end=\"951\"\u003e\n\u003cp data-start=\"891\" data-end=\"951\"\u003ePiston kit (cast lite flat-top pistons, rings, clips, pin)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"952\" data-end=\"1014\"\u003e\n\u003cp data-start=\"954\" data-end=\"1014\"\u003eComplete Athena top-end gasket set with seals and hardware\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-start=\"1016\" data-end=\"1031\"\u003e📦 Fitment\u003c\/h2\u003e\n\u003cul data-start=\"1032\" data-end=\"1073\"\u003e\n\u003cli data-start=\"1032\" data-end=\"1073\"\u003e\n\u003cp data-start=\"1034\" data-end=\"1073\"\u003e\u003cstrong data-start=\"1034\" data-end=\"1059\"\u003eYamaha Banshee YFZ350\u003c\/strong\u003e (1987–2006)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2 data-start=\"1263\" data-end=\"1285\"\u003e🛡️ Warranty Info\u003c\/h2\u003e\n\u003cp data-start=\"1286\" data-end=\"1471\"\u003eBacked by Athena against defects in materials and workmanship. Improper installation, tuning, or race-related damage is not covered. Professional installation is strongly recommended.\u003c\/p\u003e\n\u003ch2 data-start=\"1473\" data-end=\"1493\"\u003e🔑 Key Features\u003c\/h2\u003e\n\u003cul data-start=\"1494\" data-end=\"1896\"\u003e\n\u003cli data-start=\"1494\" data-end=\"1549\"\u003e\n\u003cp data-start=\"1496\" data-end=\"1549\"\u003eBig Bore setup: increases displacement to \u003cstrong data-start=\"1538\" data-end=\"1547\"\u003e392cc\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1550\" data-end=\"1630\"\u003e\n\u003cp data-start=\"1552\" data-end=\"1630\"\u003eNickel-carbide–plated aluminum cylinders for durability and heat dissipation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1631\" data-end=\"1670\"\u003e\n\u003cp data-start=\"1633\" data-end=\"1670\"\u003eRemovable bronze dome cylinder head\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1671\" data-end=\"1743\"\u003e\n\u003cp data-start=\"1673\" data-end=\"1743\"\u003eRace-designed hard-anodized power valves (OEM valves not compatible)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1744\" data-end=\"1783\"\u003e\n\u003cp data-start=\"1746\" data-end=\"1783\"\u003eCast lite flat-top pistons included\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1784\" data-end=\"1838\"\u003e\n\u003cp data-start=\"1786\" data-end=\"1838\"\u003eComplete with top-end gaskets, seals, and hardware\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1839\" data-end=\"1896\"\u003e\n\u003cp data-start=\"1841\" data-end=\"1896\"\u003eDesigned for high-performance 2-stroke Banshee builds\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"WPS or PU","offers":[{"title":"Default Title","offer_id":46510867808481,"sku":"68-4944","price":999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/athena-68mm-big-bore-cylinder-kit-yamaha-banshee-350-19872006-7450542.jpg?v=1763568158"},{"product_id":"athena-top-end-gasket-kit-yamaha-yz250f-wr250f-2001-2013","title":"Athena Top End Gasket Kit – Yamaha YZ250F WR250F (2001–2013)","description":"\u003ch1 data-start=\"147\" data-end=\"215\"\u003e🛠️ Athena Top End Gasket Kit – Yamaha YZ250F \/ WR250F (2001–2013)\u003c\/h1\u003e\n\u003cp data-start=\"217\" data-end=\"431\"\u003eRefresh your engine with Athena’s race-ready top end gasket kit—designed for 4-stroke Yamaha 250F motors. This performance-driven kit gives riders compression tuning flexibility with multiple base gaskets included.\u003c\/p\u003e\n\u003cp data-start=\"433\" data-end=\"455\"\u003e✅ \u003cstrong data-start=\"435\" data-end=\"455\"\u003eWhat’s Included:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"456\" data-end=\"669\"\u003e\n\u003cli data-start=\"456\" data-end=\"496\"\u003e\n\u003cp data-start=\"458\" data-end=\"496\"\u003eMLSS (Multi-Layer Steel) head gasket\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"497\" data-end=\"575\"\u003e\n\u003cp data-start=\"499\" data-end=\"575\"\u003ePremium quality base gaskets (multiple thicknesses for compression tuning)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"576\" data-end=\"669\"\u003e\n\u003cp data-start=\"578\" data-end=\"669\"\u003e\u003cem data-start=\"578\" data-end=\"669\"\u003eNote: Valve cover gasket, valve stem seals, rubber parts, and fiber gaskets not included.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"671\" data-end=\"686\"\u003e📦 \u003cstrong data-start=\"674\" data-end=\"686\"\u003eFitment:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"687\" data-end=\"772\"\u003e\n\u003cli data-start=\"687\" data-end=\"715\"\u003e\n\u003cp data-start=\"689\" data-end=\"715\"\u003eYamaha YZ250F: 2001–2013\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"716\" data-end=\"744\"\u003e\n\u003cp data-start=\"718\" data-end=\"744\"\u003eYamaha WR250F: 2001–2013\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"745\" data-end=\"772\"\u003e\n\u003cp data-start=\"747\" data-end=\"772\"\u003eGas Gas EC250F: 2013–2015\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"774\" data-end=\"953\"\u003e🛡️ \u003cstrong data-start=\"778\" data-end=\"796\"\u003eWarranty Info:\u003c\/strong\u003e\u003cbr\u003eBacked by Athena’s commitment to high-performance sealing technology. Built for amateur, semi-pro, and pro-level use. Made in Europe with premium materials.\u003c\/p\u003e","brand":"Parts Unlimited","offers":[{"title":"Default Title","offer_id":46521356288225,"sku":"0934-2534","price":79.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/athena-top-end-gasket-kit-yamaha-yz250f-wr250f-20012013-2736066.jpg?v=1764018900"},{"product_id":"athena-top-end-gasket-kit-yfz450-wr450f-yz450f-ec-450f","title":"Athena Top-End Gasket Kit – YFZ450 \/ WR450F \/ YZ450F \/ EC 450F (2006-2019)","description":"\u003cp data-start=\"161\" data-end=\"245\"\u003e\u003cstrong data-start=\"161\" data-end=\"245\"\u003e🧩 Athena Top-End Gasket Kit – Yamaha YFZ450 \/ WR450F \/ YZ450F \/ Gas Gas EC 450F\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"247\" data-end=\"626\"\u003eDesigned for riders who rebuild their engines midseason or before a race, this \u003cstrong data-start=\"326\" data-end=\"355\"\u003eAthena Top-End Gasket Kit\u003c\/strong\u003e includes premium multi-layer steel (MLSS) head gaskets and multiple base gasket thicknesses to fine-tune your compression. Whether you're running pump gas or race fuel, this kit gives you the flexibility and reliability you need from a trusted OEM-grade gasket supplier.\u003c\/p\u003e\n\u003cp data-start=\"628\" data-end=\"651\"\u003e\u003cstrong data-start=\"628\" data-end=\"649\"\u003e✅ What’s Included\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"652\" data-end=\"855\"\u003e\n\u003cli data-start=\"652\" data-end=\"672\"\u003e\n\u003cp data-start=\"654\" data-end=\"672\"\u003eMLSS head gasket\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"673\" data-end=\"721\"\u003e\n\u003cp data-start=\"675\" data-end=\"721\"\u003eMultiple base gaskets of varying thicknesses\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"722\" data-end=\"766\"\u003e\n\u003cp data-start=\"724\" data-end=\"766\"\u003eIntake\/exhaust and other top-end gaskets\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"767\" data-end=\"855\"\u003e\n\u003cp data-start=\"769\" data-end=\"855\"\u003e\u003cstrong data-start=\"769\" data-end=\"778\"\u003eNote:\u003c\/strong\u003e Does \u003cem data-start=\"784\" data-end=\"789\"\u003enot\u003c\/em\u003e include valve cover gasket, rubber parts, shims, or fiber gaskets\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"857\" data-end=\"873\"\u003e\u003cstrong data-start=\"857\" data-end=\"871\"\u003e📦 Fitment\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"874\" data-end=\"1048\"\u003e\n\u003cli data-start=\"874\" data-end=\"901\"\u003e\n\u003cp data-start=\"876\" data-end=\"901\"\u003e2006–2009 Yamaha YZ450F\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"902\" data-end=\"929\"\u003e\n\u003cp data-start=\"904\" data-end=\"929\"\u003e2007–2014 Yamaha WR450F\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"930\" data-end=\"958\"\u003e\n\u003cp data-start=\"932\" data-end=\"958\"\u003e2009–2019 Yamaha YFZ450R\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"959\" data-end=\"995\"\u003e\n\u003cp data-start=\"961\" data-end=\"995\"\u003e2010 Yamaha YFZ450X \/ YFZ450R SE\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"996\" data-end=\"1018\"\u003e\n\u003cp data-start=\"998\" data-end=\"1018\"\u003e2017 Yamaha YFZ450\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1019\" data-end=\"1048\"\u003e\n\u003cp data-start=\"1021\" data-end=\"1048\"\u003e2013–2015 Gas Gas EC 450F\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1050\" data-end=\"1067\"\u003e\u003cstrong data-start=\"1050\" data-end=\"1065\"\u003e⚙️ Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1068\" data-end=\"1334\"\u003e\n\u003cli data-start=\"1068\" data-end=\"1126\"\u003e\n\u003cp data-start=\"1070\" data-end=\"1126\"\u003eMulti-layer steel head gasket ensures superior sealing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1127\" data-end=\"1188\"\u003e\n\u003cp data-start=\"1129\" data-end=\"1188\"\u003eOptional base gasket thicknesses allow compression tuning\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1189\" data-end=\"1247\"\u003e\n\u003cp data-start=\"1191\" data-end=\"1247\"\u003eDesigned for pro, semi-pro, and serious amateur riders\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1248\" data-end=\"1271\"\u003e\n\u003cp data-start=\"1250\" data-end=\"1271\"\u003eOEM-grade materials\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1272\" data-end=\"1334\"\u003e\n\u003cp data-start=\"1274\" data-end=\"1334\"\u003eIdeal for freshening up top ends between races or mid-season\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1336\" data-end=\"1433\"\u003e\u003cstrong data-start=\"1336\" data-end=\"1352\"\u003e🛡️ Warranty\u003c\/strong\u003e\u003cbr data-start=\"1352\" data-end=\"1355\"\u003eAthena gaskets are backed by a limited warranty against manufacturing defects.\u003c\/p\u003e","brand":"Parts Unlimited","offers":[{"title":"Default Title","offer_id":46564441325793,"sku":"0934-2581","price":96.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/D5D1891E-D5E1-402B-AFA1-CC51ADD9BDFF.jpg?v=1750482518"},{"product_id":"athena-big-bore-piston-kit-97-95mm-yfz450r-x","title":"Athena Big Bore Piston Kit – 97.95mm YFZ450R\/X (2004-2013)","description":"\u003cp data-start=\"201\" data-end=\"270\"\u003e\u003cstrong data-start=\"201\" data-end=\"270\"\u003e🏁 Athena Forged Big Bore Piston Kit – 97.95mm (Yamaha YFZ450R\/X)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"272\" data-end=\"585\"\u003eUpgrade your Athena big bore setup with this \u003cstrong data-start=\"317\" data-end=\"346\"\u003e97.95mm Forged Piston Kit\u003c\/strong\u003e, designed for max compression, high RPM durability, and serious horsepower. Built from \u003cstrong data-start=\"434\" data-end=\"458\"\u003e2618 forged aluminum\u003c\/strong\u003e and tested under racing conditions, this piston is ideal for high-performance YFZ450 builds running Athena big bore cylinders.\u003c\/p\u003e\n\u003cp data-start=\"587\" data-end=\"610\"\u003e\u003cstrong data-start=\"587\" data-end=\"608\"\u003e✅ What’s Included\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"611\" data-end=\"685\"\u003e\n\u003cli data-start=\"611\" data-end=\"643\"\u003e\n\u003cp data-start=\"613\" data-end=\"643\"\u003eAthena 97.95mm forged piston\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"644\" data-end=\"660\"\u003e\n\u003cp data-start=\"646\" data-end=\"660\"\u003ePiston rings\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"661\" data-end=\"674\"\u003e\n\u003cp data-start=\"663\" data-end=\"674\"\u003eWrist pin\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"675\" data-end=\"685\"\u003e\n\u003cp data-start=\"677\" data-end=\"685\"\u003eCirclips\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"687\" data-end=\"703\"\u003e\u003cstrong data-start=\"687\" data-end=\"701\"\u003e📦 Fitment\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"704\" data-end=\"861\"\u003e\n\u003cli data-start=\"704\" data-end=\"744\"\u003e\n\u003cp data-start=\"706\" data-end=\"744\"\u003e2004–2011 Yamaha YFZ450 (carbureted)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"745\" data-end=\"773\"\u003e\n\u003cp data-start=\"747\" data-end=\"773\"\u003e2009–2013 Yamaha YFZ450R\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"774\" data-end=\"802\"\u003e\n\u003cp data-start=\"776\" data-end=\"802\"\u003e2010–2011 Yamaha YFZ450X\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"803\" data-end=\"861\"\u003e\n\u003cp data-start=\"805\" data-end=\"861\"\u003eDesigned for use with \u003cstrong data-start=\"827\" data-end=\"861\"\u003eAthena big bore cylinders only\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"863\" data-end=\"880\"\u003e\u003cstrong data-start=\"863\" data-end=\"878\"\u003e⚙️ Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"881\" data-end=\"1159\"\u003e\n\u003cli data-start=\"881\" data-end=\"932\"\u003e\n\u003cp data-start=\"883\" data-end=\"932\"\u003eHigh-strength 2618 forged aluminum construction\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"933\" data-end=\"961\"\u003e\n\u003cp data-start=\"935\" data-end=\"961\"\u003e12.4:1 compression ratio\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"962\" data-end=\"1013\"\u003e\n\u003cp data-start=\"964\" data-end=\"1013\"\u003eOptimized for racing and high-load environments\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1014\" data-end=\"1071\"\u003e\n\u003cp data-start=\"1016\" data-end=\"1071\"\u003eEngine dyno and track tested under progressive stress\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1072\" data-end=\"1115\"\u003e\n\u003cp data-start=\"1074\" data-end=\"1115\"\u003eHandles thermal and mechanical extremes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1116\" data-end=\"1159\"\u003e\n\u003cp data-start=\"1118\" data-end=\"1159\"\u003eIdeal for 4-stroke ATV performance builds\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1161\" data-end=\"1246\"\u003e\u003cstrong data-start=\"1161\" data-end=\"1177\"\u003e🛡️ Warranty\u003c\/strong\u003e\u003cbr data-start=\"1177\" data-end=\"1180\"\u003eBacked by Athena’s limited warranty against manufacturing defects.\u003c\/p\u003e","brand":"Parts Unlimited","offers":[{"title":"Default Title","offer_id":46564445192417,"sku":"0910-2505","price":311.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/15F2F027-591A-4F1E-AD3E-7DFCBBF94952.jpg?v=1750482809"},{"product_id":"honda-trx450r-er-480cc-athena-big-bore-cylinder-kit-100mm-06-14","title":"Honda TRX450R\/ER 480cc Athena Big Bore Cylinder Kit 100mm (06–14) (2006-2014)","description":"\u003ch1 data-start=\"85\" data-end=\"181\"\u003e\u003cstrong data-start=\"87\" data-end=\"179\"\u003eHonda TRX450R \/ TRX450ER 480cc Athena 100mm Big Bore Cylinder Kit (2006–2009, 2012–2014)\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch2 data-start=\"183\" data-end=\"203\"\u003e🛠️ Description\u003c\/h2\u003e\n\u003cp data-start=\"204\" data-end=\"577\"\u003eUpgrade your TRX450R\/ER with the Athena 480cc Big Bore Race Cylinder Kit for maximum power and durability. Featuring a precision-machined aluminum cylinder with a nickel-carbide bore coating, this kit is designed with larger water jackets for improved cooling and comes with a forged piston to withstand extreme performance demands. Perfect for serious riders and racers.\u003c\/p\u003e\n\u003ch2 data-start=\"579\" data-end=\"601\"\u003e✅ What’s Included\u003c\/h2\u003e\n\u003cul data-start=\"602\" data-end=\"770\"\u003e\n\u003cli data-start=\"602\" data-end=\"661\"\u003e\n\u003cp data-start=\"604\" data-end=\"661\"\u003e100.00 mm aluminum cylinder with nickel-carbide coating\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"662\" data-end=\"703\"\u003e\n\u003cp data-start=\"664\" data-end=\"703\"\u003eForged piston with molybdenum coating\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"704\" data-end=\"770\"\u003e\n\u003cp data-start=\"706\" data-end=\"770\"\u003eSpecially designed hard-anodized power valves (cannot use OEM)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-start=\"772\" data-end=\"787\"\u003e📦 Fitment\u003c\/h2\u003e\n\u003cul data-start=\"788\" data-end=\"888\"\u003e\n\u003cli data-start=\"788\" data-end=\"848\"\u003e\n\u003cp data-start=\"790\" data-end=\"848\"\u003e\u003cstrong data-start=\"790\" data-end=\"823\"\u003eHonda TRX450ER Electric Start\u003c\/strong\u003e — 2006–2009, 2012–2014\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"849\" data-end=\"888\"\u003e\n\u003cp data-start=\"851\" data-end=\"888\"\u003e\u003cstrong data-start=\"851\" data-end=\"868\"\u003eHonda TRX450R\u003c\/strong\u003e — 2006–2009, 2012\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-start=\"890\" data-end=\"912\"\u003e🛡️ Warranty Info\u003c\/h2\u003e\n\u003cp data-start=\"913\" data-end=\"1080\"\u003eAthena products are backed by the manufacturer against defects in materials and workmanship. Warranty does not cover improper installation, tuning, or racing damage.\u003c\/p\u003e\n\u003ch2 data-start=\"1082\" data-end=\"1102\"\u003e🔑 Key Features\u003c\/h2\u003e\n\u003cul data-start=\"1103\" data-end=\"1446\"\u003e\n\u003cli data-start=\"1103\" data-end=\"1131\"\u003e\n\u003cp data-start=\"1105\" data-end=\"1131\"\u003eBore Size: \u003cstrong data-start=\"1116\" data-end=\"1129\"\u003e100.00 mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1132\" data-end=\"1160\"\u003e\n\u003cp data-start=\"1134\" data-end=\"1160\"\u003eDisplacement: \u003cstrong data-start=\"1148\" data-end=\"1158\"\u003e480 cc\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1161\" data-end=\"1194\"\u003e\n\u003cp data-start=\"1163\" data-end=\"1194\"\u003eCompression Ratio: \u003cstrong data-start=\"1182\" data-end=\"1192\"\u003e11.6:1\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1195\" data-end=\"1245\"\u003e\n\u003cp data-start=\"1197\" data-end=\"1245\"\u003eDesigned for 4-stroke Honda TRX450R\/ER engines\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1246\" data-end=\"1298\"\u003e\n\u003cp data-start=\"1248\" data-end=\"1298\"\u003eLarger water jackets for better heat dissipation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1299\" data-end=\"1366\"\u003e\n\u003cp data-start=\"1301\" data-end=\"1366\"\u003eRace-ready forged piston with moly coating for reduced friction\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1367\" data-end=\"1446\"\u003e\n\u003cp data-start=\"1369\" data-end=\"1446\"\u003eLightweight aluminum cylinder construction with nickel-carbide bore coating\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Parts Unlimited","offers":[{"title":"Default Title","offer_id":46765906428129,"sku":"0931-0667","price":1227.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/honda-trx450rer-480cc-athena-big-bore-cylinder-kit-100mm-0614-7234640.jpg?v=1763568591"},{"product_id":"athena-94mm-big-bore-cylinder-kit-dr-z400-lt-z400-klx400-kfx400-dvx400","title":"Athena 94mm Big Bore Cylinder Kit – DR-Z400 \/ LT-Z400 \/ KLX400 \/ KFX400 \/ DVX400 (2000-2016)","description":"\u003ch1 data-start=\"115\" data-end=\"217\"\u003eAthena 94mm Big Bore Cylinder Kit – Suzuki DR-Z400 \/ LT-Z400, Kawasaki KLX\/KFX400, Arctic Cat DVX400\u003c\/h1\u003e\n\u003ch2 data-start=\"219\" data-end=\"239\"\u003e🛠️ Description\u003c\/h2\u003e\n\u003cp data-start=\"240\" data-end=\"674\"\u003eBoost your machine to 435cc with the Athena 94mm Big Bore Cylinder Kit. Featuring a precision aluminum cylinder with nickel-carbide coating, this kit improves torque with stock CDI and exhaust, and delivers maximum horsepower gains when paired with a racing exhaust. The forged molybdenum-coated piston ensures durability under high-performance conditions, while the enlarged water jackets improve cooling for sustained performance.\u003c\/p\u003e\n\u003ch2 data-start=\"676\" data-end=\"698\"\u003e✅ What’s Included\u003c\/h2\u003e\n\u003cul data-start=\"699\" data-end=\"915\"\u003e\n\u003cli data-start=\"699\" data-end=\"762\"\u003e\n\u003cp data-start=\"701\" data-end=\"762\"\u003e94mm big bore aluminum cylinder with nickel-carbide coating\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"763\" data-end=\"804\"\u003e\n\u003cp data-start=\"765\" data-end=\"804\"\u003eForged piston with molybdenum coating\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"805\" data-end=\"873\"\u003e\n\u003cp data-start=\"807\" data-end=\"873\"\u003eHigh-performance hard-anodized power valves (not OEM compatible)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"874\" data-end=\"915\"\u003e\n\u003cp data-start=\"876\" data-end=\"915\"\u003ePiston rings, wrist pin, and circlips\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-start=\"917\" data-end=\"932\"\u003e📦 Fitment\u003c\/h2\u003e\n\u003cul data-start=\"933\" data-end=\"1211\"\u003e\n\u003cli data-start=\"933\" data-end=\"967\"\u003e\n\u003cp data-start=\"935\" data-end=\"967\"\u003e\u003cstrong data-start=\"935\" data-end=\"953\"\u003eSuzuki DR-Z400\u003c\/strong\u003e — 2000–2016\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"968\" data-end=\"998\"\u003e\n\u003cp data-start=\"970\" data-end=\"998\"\u003e\u003cstrong data-start=\"970\" data-end=\"989\"\u003eSuzuki DR-Z400S\u003c\/strong\u003e — 2019\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"999\" data-end=\"1030\"\u003e\n\u003cp data-start=\"1001\" data-end=\"1030\"\u003e\u003cstrong data-start=\"1001\" data-end=\"1021\"\u003eSuzuki DR-Z400SM\u003c\/strong\u003e — 2019\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1031\" data-end=\"1101\"\u003e\n\u003cp data-start=\"1033\" data-end=\"1101\"\u003e\u003cstrong data-start=\"1033\" data-end=\"1075\"\u003eSuzuki LT-Z400 QuadSport Z \/ Z LE \/ SE\u003c\/strong\u003e — 2003–2014, 2008, 2012\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1102\" data-end=\"1137\"\u003e\n\u003cp data-start=\"1104\" data-end=\"1137\"\u003e\u003cstrong data-start=\"1104\" data-end=\"1123\"\u003eKawasaki KLX400\u003c\/strong\u003e — 2003–2006\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1138\" data-end=\"1173\"\u003e\n\u003cp data-start=\"1140\" data-end=\"1173\"\u003e\u003cstrong data-start=\"1140\" data-end=\"1159\"\u003eKawasaki KFX400\u003c\/strong\u003e — 2003–2006\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1174\" data-end=\"1211\"\u003e\n\u003cp data-start=\"1176\" data-end=\"1211\"\u003e\u003cstrong data-start=\"1176\" data-end=\"1197\"\u003eArctic Cat DVX400\u003c\/strong\u003e — 2004–2008\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-start=\"1213\" data-end=\"1235\"\u003e🛡️ Warranty Info\u003c\/h2\u003e\n\u003cp data-start=\"1236\" data-end=\"1341\"\u003eManufacturer warranty against defects in materials and workmanship. Wear items and race use are excluded.\u003c\/p\u003e\n\u003ch2 data-start=\"1343\" data-end=\"1363\"\u003e🔑 Key Features\u003c\/h2\u003e\n\u003cul data-start=\"1364\" data-end=\"1693\"\u003e\n\u003cli data-start=\"1364\" data-end=\"1409\"\u003e\n\u003cp data-start=\"1366\" data-end=\"1409\"\u003e94mm bore increases displacement to 435cc\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1410\" data-end=\"1462\"\u003e\n\u003cp data-start=\"1412\" data-end=\"1462\"\u003e12.3:1 compression ratio for maximum performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1463\" data-end=\"1511\"\u003e\n\u003cp data-start=\"1465\" data-end=\"1511\"\u003eDurable nickel-carbide cylinder bore coating\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1512\" data-end=\"1568\"\u003e\n\u003cp data-start=\"1514\" data-end=\"1568\"\u003eEnlarged water jackets for better cooling efficiency\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1569\" data-end=\"1631\"\u003e\n\u003cp data-start=\"1571\" data-end=\"1631\"\u003eForged piston with molybdenum coating for reduced friction\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1632\" data-end=\"1693\"\u003e\n\u003cp data-start=\"1634\" data-end=\"1693\"\u003eIncludes specially designed power valves (cannot use OEM)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Parts Unlimited","offers":[{"title":"Default Title","offer_id":46772389544161,"sku":"0931-0016","price":1117.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/athena-94mm-big-bore-cylinder-kit-dr-z400-lt-z400-klx400-kfx400-dvx400-5054096.png?v=1764018665"},{"product_id":"athena-complete-gasket-kit-honda-xr650l-nx650-dominator","title":"Athena Complete Gasket Kit – Honda XR650L \/ NX650 Dominator (1988-2009)","description":"\u003ch1 data-start=\"110\" data-end=\"183\"\u003eAthena Complete Gasket Kit – Honda XR650L \/ NX650 Dominator (1988–2009)\u003c\/h1\u003e\n\u003ch2 data-start=\"185\" data-end=\"205\"\u003e🛠️ Description\u003c\/h2\u003e\n\u003cp data-start=\"206\" data-end=\"757\"\u003eThe Athena Complete Gasket Kit is engineered for superior sealing performance on Honda XR650L and NX650 Dominator engines. Featuring head gaskets with rubber-coated spring steel construction and soft steel base gaskets with a durable rubber coating, this kit ensures a perfect seal even under extreme temperatures. High-temperature blue silicone beading is applied to critical flat gaskets for maximum sealing reliability. Ideal for a complete rebuild, it includes top-quality gaskets and rubber parts for both top-end and complete engine overhauls.\u003c\/p\u003e\n\u003ch2 data-start=\"759\" data-end=\"781\"\u003e✅ What’s Included\u003c\/h2\u003e\n\u003cul data-start=\"782\" data-end=\"1035\"\u003e\n\u003cli data-start=\"782\" data-end=\"842\"\u003e\n\u003cp data-start=\"784\" data-end=\"842\"\u003eHead gasket with rubber-coated spring steel construction\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"843\" data-end=\"884\"\u003e\n\u003cp data-start=\"845\" data-end=\"884\"\u003eRubber-coated soft steel base gaskets\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"885\" data-end=\"950\"\u003e\n\u003cp data-start=\"887\" data-end=\"950\"\u003eTop-quality gaskets and rubber parts for full engine rebuilds\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"951\" data-end=\"1035\"\u003e\n\u003cp data-start=\"953\" data-end=\"1035\"\u003eHigh-temp blue silicone beading on critical gaskets\u003cbr data-start=\"1004\" data-end=\"1007\"\u003e\u003cem data-start=\"1007\" data-end=\"1033\"\u003e(Oil seals not included)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-start=\"1037\" data-end=\"1052\"\u003e📦 Fitment\u003c\/h2\u003e\n\u003cul data-start=\"1053\" data-end=\"1127\"\u003e\n\u003cli data-start=\"1053\" data-end=\"1085\"\u003e\n\u003cp data-start=\"1055\" data-end=\"1085\"\u003e\u003cstrong data-start=\"1055\" data-end=\"1071\"\u003eHonda XR650L\u003c\/strong\u003e — 1993–2009\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1086\" data-end=\"1127\"\u003e\n\u003cp data-start=\"1088\" data-end=\"1127\"\u003e\u003cstrong data-start=\"1088\" data-end=\"1113\"\u003eHonda NX650 Dominator\u003c\/strong\u003e — 1988–1993\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-start=\"1129\" data-end=\"1151\"\u003e🛡️ Warranty Info\u003c\/h2\u003e\n\u003cp data-start=\"1152\" data-end=\"1255\"\u003eManufacturer’s warranty against defects in materials and workmanship. Race use and wear items excluded.\u003c\/p\u003e\n\u003ch2 data-start=\"1257\" data-end=\"1277\"\u003e🔑 Key Features\u003c\/h2\u003e\n\u003cul data-start=\"1278\" data-end=\"1649\"\u003e\n\u003cli data-start=\"1278\" data-end=\"1322\"\u003e\n\u003cp data-start=\"1280\" data-end=\"1322\"\u003eSuperior-quality gasket sets from Athena\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1323\" data-end=\"1390\"\u003e\n\u003cp data-start=\"1325\" data-end=\"1390\"\u003eRubber-coated steel head and base gaskets for long-lasting seal\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1391\" data-end=\"1456\"\u003e\n\u003cp data-start=\"1393\" data-end=\"1456\"\u003eSteel core material with high springback and tensile strength\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1457\" data-end=\"1517\"\u003e\n\u003cp data-start=\"1459\" data-end=\"1517\"\u003eTransparent coating ensures a perfect seal at high temps\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1518\" data-end=\"1573\"\u003e\n\u003cp data-start=\"1520\" data-end=\"1573\"\u003eHigh-temp blue silicone beading on critical gaskets\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1574\" data-end=\"1649\"\u003e\n\u003cp data-start=\"1576\" data-end=\"1649\"\u003eIncludes all gaskets and rubber parts for top-end and complete rebuilds\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Parts Unlimited","offers":[{"title":"Default Title","offer_id":46772397539553,"sku":"0934-0044","price":147.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/athena-complete-gasket-kit-honda-xr650l-nx650-dominator-1498013.jpg?v=1763567943"},{"product_id":"yamaha-yz125-yz125x-athena-144cc-big-bore-kit-2005-2022","title":"Yamaha YZ125 \/ YZ125X Athena 144cc Big Bore Kit (2005–2022)","description":"\u003ch1 data-start=\"158\" data-end=\"244\"\u003eYamaha YZ125 \/ YZ125X 58mm 144cc Athena Big Bore Kit – Top End Rebuild (2005–2022)\u003c\/h1\u003e\n\u003cp data-start=\"246\" data-end=\"601\"\u003e🛠️ \u003cstrong data-start=\"250\" data-end=\"265\"\u003eDescription\u003c\/strong\u003e\u003cbr data-start=\"265\" data-end=\"268\"\u003eTurn your Yamaha YZ125 into a 144cc race weapon with the Athena Big Bore Kit. Designed for 2005–2021 YZ125 and 2020–2022 YZ125X, this kit adds serious horsepower and torque while maintaining OEM-level reliability. Includes all top-end components, from cylinder to piston and gaskets, with Athena’s proven engineering and materials.\u003c\/p\u003e\n\u003cp data-start=\"603\" data-end=\"626\"\u003e✅ \u003cstrong data-start=\"605\" data-end=\"624\"\u003eWhat’s Included\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"627\" data-end=\"993\"\u003e\n\u003cli data-start=\"627\" data-end=\"676\"\u003e\n\u003cp data-start=\"629\" data-end=\"676\"\u003eAthena 58mm Nikasil Big Bore Cylinder (144cc)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"677\" data-end=\"742\"\u003e\n\u003cp data-start=\"679\" data-end=\"742\"\u003eAthena Coated Piston Kit (Piston, Rings, Wrist Pin, Circlips)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"743\" data-end=\"781\"\u003e\n\u003cp data-start=\"745\" data-end=\"781\"\u003eAthena Complete Top End Gasket Set\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"782\" data-end=\"831\"\u003e\n\u003cp data-start=\"784\" data-end=\"831\"\u003eAthena Cylinder Head w\/ Removable Bronze Dome\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"832\" data-end=\"856\"\u003e\n\u003cp data-start=\"834\" data-end=\"856\"\u003eAthena Head Stud Kit\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"857\" data-end=\"934\"\u003e\n\u003cp data-start=\"859\" data-end=\"934\"\u003eAthena High-Performance Anodized Power Valves (OEM valves not compatible)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"935\" data-end=\"993\"\u003e\n\u003cp data-start=\"937\" data-end=\"993\"\u003eAll components brand new, covered by Athena’s warranty\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"995\" data-end=\"1011\"\u003e📦 \u003cstrong data-start=\"998\" data-end=\"1009\"\u003eFitment\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1012\" data-end=\"1070\"\u003e\n\u003cli data-start=\"1012\" data-end=\"1040\"\u003e\n\u003cp data-start=\"1014\" data-end=\"1040\"\u003eYamaha YZ125 (2005–2021)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1041\" data-end=\"1070\"\u003e\n\u003cp data-start=\"1043\" data-end=\"1070\"\u003eYamaha YZ125X (2020–2022)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1072\" data-end=\"1095\"\u003e🛡️ \u003cstrong data-start=\"1076\" data-end=\"1093\"\u003eWarranty Info\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1096\" data-end=\"1275\"\u003e\n\u003cli data-start=\"1096\" data-end=\"1130\"\u003e\n\u003cp data-start=\"1098\" data-end=\"1130\"\u003eManufacturer warranty included\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1131\" data-end=\"1222\"\u003e\n\u003cp data-start=\"1133\" data-end=\"1222\"\u003eProfessional installation required — improper tuning, break-in, or setup voids warranty\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1223\" data-end=\"1275\"\u003e\n\u003cp data-start=\"1225\" data-end=\"1275\"\u003eCase boring \u003cstrong data-start=\"1237\" data-end=\"1256\"\u003emay be required\u003c\/strong\u003e for installation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1277\" data-end=\"1298\"\u003e🔑 \u003cstrong data-start=\"1280\" data-end=\"1296\"\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1299\" data-end=\"1637\"\u003e\n\u003cli data-start=\"1299\" data-end=\"1363\"\u003e\n\u003cp data-start=\"1301\" data-end=\"1363\"\u003eBoosts displacement from 125cc → 144cc for major power gains\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1364\" data-end=\"1436\"\u003e\n\u003cp data-start=\"1366\" data-end=\"1436\"\u003eAluminum cylinder with nickel-carbide coating for maximum durability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1437\" data-end=\"1516\"\u003e\n\u003cp data-start=\"1439\" data-end=\"1516\"\u003eIncludes complete Athena top-end kit with piston, gaskets, head, and valves\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1517\" data-end=\"1569\"\u003e\n\u003cp data-start=\"1519\" data-end=\"1569\"\u003eRace-ready with improved torque and top-end pull\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1570\" data-end=\"1637\"\u003e\n\u003cp data-start=\"1572\" data-end=\"1637\"\u003eDirect OEM fitment — designed specifically for YZ125 and YZ125X\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Parts Unlimited","offers":[{"title":"Default Title","offer_id":46777877790945,"sku":"Fixed-0931-0146","price":900.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/yamaha-yz125-yz125x-athena-144cc-big-bore-kit-20052022-8229967.jpg?v=1763566894"},{"product_id":"yamaha-yz125-yz125x-athena-stock-bore-cylinder-kit-2005-2022","title":"Yamaha YZ125 \/ YZ125X Athena Stock Bore Cylinder Kit (2005–2022)","description":"\u003ch1 data-start=\"149\" data-end=\"238\"\u003eYamaha YZ125 \/ YZ125X 54mm Athena Stock Bore Cylinder Top End Rebuild Kit (2005–2022)\u003c\/h1\u003e\n\u003cp data-start=\"240\" data-end=\"668\"\u003e🛠️ \u003cstrong data-start=\"244\" data-end=\"259\"\u003eDescription\u003c\/strong\u003e\u003cbr data-start=\"259\" data-end=\"262\"\u003eBring your Yamaha YZ125 back to life with this complete Athena Stock Bore Cylinder Kit. Designed for 2005–2021 YZ125 and 2020–2022 YZ125X, this 54mm OEM-spec top end rebuild kit restores power, improves cooling efficiency, and includes everything you need for a professional-level refresh. Engineered with premium materials and precision machining, this is the most complete OEM-style solution available.\u003c\/p\u003e\n\u003cp data-start=\"670\" data-end=\"693\"\u003e✅ \u003cstrong data-start=\"672\" data-end=\"691\"\u003eWhat’s Included\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"694\" data-end=\"1117\"\u003e\n\u003cli data-start=\"694\" data-end=\"749\"\u003e\n\u003cp data-start=\"696\" data-end=\"749\"\u003eAthena 54mm OEM Stock Bore Nikasil Cylinder (125cc)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"750\" data-end=\"827\"\u003e\n\u003cp data-start=\"752\" data-end=\"827\"\u003eAthena Cast-Lite Flat Top Piston Kit (piston, rings, wrist pin, circlips)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"828\" data-end=\"891\"\u003e\n\u003cp data-start=\"830\" data-end=\"891\"\u003eAthena Complete Top End Gasket Set (all seals and hardware)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"892\" data-end=\"984\"\u003e\n\u003cp data-start=\"894\" data-end=\"984\"\u003eAthena Cylinder Head w\/ Removable Bronze Dome (anti-detonation, high-compression design)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"985\" data-end=\"1067\"\u003e\n\u003cp data-start=\"987\" data-end=\"1067\"\u003eAthena High-Performance Hard Anodized Power Valves (OEM valves not compatible)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1068\" data-end=\"1117\"\u003e\n\u003cp data-start=\"1070\" data-end=\"1117\"\u003eAll brand-new parts backed by Athena warranty\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1119\" data-end=\"1135\"\u003e📦 \u003cstrong data-start=\"1122\" data-end=\"1133\"\u003eFitment\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1136\" data-end=\"1194\"\u003e\n\u003cli data-start=\"1136\" data-end=\"1164\"\u003e\n\u003cp data-start=\"1138\" data-end=\"1164\"\u003eYamaha YZ125 (2005–2021)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1165\" data-end=\"1194\"\u003e\n\u003cp data-start=\"1167\" data-end=\"1194\"\u003eYamaha YZ125X (2020–2022)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1196\" data-end=\"1219\"\u003e🛡️ \u003cstrong data-start=\"1200\" data-end=\"1217\"\u003eWarranty Info\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1220\" data-end=\"1420\"\u003e\n\u003cli data-start=\"1220\" data-end=\"1264\"\u003e\n\u003cp data-start=\"1222\" data-end=\"1264\"\u003eBacked by Athena’s manufacturer warranty\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1265\" data-end=\"1318\"\u003e\n\u003cp data-start=\"1267\" data-end=\"1318\"\u003eProfessional installation is strongly recommended\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1319\" data-end=\"1420\"\u003e\n\u003cp data-start=\"1321\" data-end=\"1420\"\u003eWarranty does not cover failures from improper installation, tuning errors, or incorrect break-in\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1422\" data-end=\"1443\"\u003e🔑 \u003cstrong data-start=\"1425\" data-end=\"1441\"\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1444\" data-end=\"1825\"\u003e\n\u003cli data-start=\"1444\" data-end=\"1494\"\u003e\n\u003cp data-start=\"1446\" data-end=\"1494\"\u003eStock bore 54mm (125cc) for OEM-style rebuilds\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1495\" data-end=\"1581\"\u003e\n\u003cp data-start=\"1497\" data-end=\"1581\"\u003eAluminum cylinder with nickel-carbide plating \u0026amp; enlarged water jackets for cooling\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1582\" data-end=\"1661\"\u003e\n\u003cp data-start=\"1584\" data-end=\"1661\"\u003eIncludes Athena high-performance anodized power valves (not OEM compatible)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1662\" data-end=\"1747\"\u003e\n\u003cp data-start=\"1664\" data-end=\"1747\"\u003eCylinder head with removable bronze dome for compression tuning \u0026amp; anti-detonation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1748\" data-end=\"1825\"\u003e\n\u003cp data-start=\"1750\" data-end=\"1825\"\u003eComplete bolt-on solution, no machining required (unless otherwise noted)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Parts Unlimited","offers":[{"title":"Default Title","offer_id":46777884049633,"sku":"Fixed-0931-0095","price":840.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/yamaha-yz125-yz125x-athena-stock-bore-cylinder-kit-20052022-3603266.jpg?v=1763568158"},{"product_id":"yamaha-yz125-athena-complete-gasket-kit-1999-2004","title":"Yamaha YZ125 Athena Complete Gasket Kit (1999–2004)","description":"\u003ch1 data-start=\"130\" data-end=\"196\"\u003eYamaha YZ125 Athena Complete Gasket Kit – 2-Stroke (1999–2004)\u003c\/h1\u003e\n\u003cp data-start=\"198\" data-end=\"551\"\u003e🛠️ \u003cstrong data-start=\"202\" data-end=\"217\"\u003eDescription\u003c\/strong\u003e\u003cbr data-start=\"217\" data-end=\"220\"\u003eKeep your Yamaha YZ125 running strong with this premium Athena Complete Gasket Kit. Designed for 2-stroke engines, this kit includes every gasket you need to rebuild your engine top to bottom. Built with superior materials, Athena gaskets are trusted worldwide for sealing strength, heat resistance, and long-lasting reliability.\u003c\/p\u003e\n\u003cp data-start=\"553\" data-end=\"576\"\u003e✅ \u003cstrong data-start=\"555\" data-end=\"574\"\u003eWhat’s Included\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"577\" data-end=\"811\"\u003e\n\u003cli data-start=\"577\" data-end=\"631\"\u003e\n\u003cp data-start=\"579\" data-end=\"631\"\u003eComplete Athena Engine Gasket Kit for Yamaha YZ125\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"632\" data-end=\"689\"\u003e\n\u003cp data-start=\"634\" data-end=\"689\"\u003eHead gasket (rubber-coated spring steel construction)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"690\" data-end=\"739\"\u003e\n\u003cp data-start=\"692\" data-end=\"739\"\u003eBase gaskets (soft steel with rubber coating)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"740\" data-end=\"811\"\u003e\n\u003cp data-start=\"742\" data-end=\"811\"\u003eAll necessary gaskets and rubber parts for complete engine rebuilds\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"813\" data-end=\"829\"\u003e📦 \u003cstrong data-start=\"816\" data-end=\"827\"\u003eFitment\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"830\" data-end=\"858\"\u003e\n\u003cli data-start=\"830\" data-end=\"858\"\u003e\n\u003cp data-start=\"832\" data-end=\"858\"\u003eYamaha YZ125 (1999–2004)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"860\" data-end=\"883\"\u003e🛡️ \u003cstrong data-start=\"864\" data-end=\"881\"\u003eWarranty Info\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"884\" data-end=\"1015\"\u003e\n\u003cli data-start=\"884\" data-end=\"928\"\u003e\n\u003cp data-start=\"886\" data-end=\"928\"\u003eBacked by Athena’s manufacturer warranty\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"929\" data-end=\"970\"\u003e\n\u003cp data-start=\"931\" data-end=\"970\"\u003eProfessional installation recommended\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"971\" data-end=\"1015\"\u003e\n\u003cp data-start=\"973\" data-end=\"1015\"\u003eNote: Oil seals not included in this kit\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1017\" data-end=\"1038\"\u003e🔑 \u003cstrong data-start=\"1020\" data-end=\"1036\"\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1039\" data-end=\"1414\"\u003e\n\u003cli data-start=\"1039\" data-end=\"1093\"\u003e\n\u003cp data-start=\"1041\" data-end=\"1093\"\u003eOEM-quality gasket set engineered for Yamaha YZ125\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1094\" data-end=\"1156\"\u003e\n\u003cp data-start=\"1096\" data-end=\"1156\"\u003eRubber-coated spring steel head gasket for perfect sealing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1157\" data-end=\"1226\"\u003e\n\u003cp data-start=\"1159\" data-end=\"1226\"\u003eSoft steel base gaskets provide durability under high compression\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1227\" data-end=\"1292\"\u003e\n\u003cp data-start=\"1229\" data-end=\"1292\"\u003eTransparent coating ensures reliability even at extreme temps\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1293\" data-end=\"1353\"\u003e\n\u003cp data-start=\"1295\" data-end=\"1353\"\u003eHigh-temp blue silicone beading on critical flat gaskets\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1354\" data-end=\"1414\"\u003e\n\u003cp data-start=\"1356\" data-end=\"1414\"\u003eDesigned for complete engine rebuilds (top \u0026amp; bottom end)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Parts Unlimited","offers":[{"title":"Default Title","offer_id":46777888047329,"sku":"400485850116","price":46.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/yamaha-yz125-athena-complete-gasket-kit-19992004-5969739.jpg?v=1763570000"},{"product_id":"yamaha-yz125-athena-top-end-gasket-kit-1999-2004","title":"Yamaha YZ125 Athena Top End Gasket Kit (1999–2004)","description":"\u003ch1 data-start=\"130\" data-end=\"195\"\u003eYamaha YZ125 Athena Top End Gasket Kit – 2-Stroke (1999–2004)\u003c\/h1\u003e\n\u003cp data-start=\"197\" data-end=\"580\"\u003e🛠️ \u003cstrong data-start=\"201\" data-end=\"216\"\u003eDescription\u003c\/strong\u003e\u003cbr data-start=\"216\" data-end=\"219\"\u003eFreshen up your Yamaha YZ125 top end with this Athena Top End Gasket Kit. Designed specifically for 2-stroke rebuilds, this kit includes premium quality gaskets to restore compression, seal strength, and reliability. Ideal for riders who service their top end mid-season or before a race, Athena gaskets are built to handle extreme conditions and high output.\u003c\/p\u003e\n\u003cp data-start=\"582\" data-end=\"605\"\u003e✅ \u003cstrong data-start=\"584\" data-end=\"603\"\u003eWhat’s Included\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"606\" data-end=\"808\"\u003e\n\u003cli data-start=\"606\" data-end=\"667\"\u003e\n\u003cp data-start=\"608\" data-end=\"667\"\u003eAthena MLS Head Gasket (multi-layered steel construction)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"668\" data-end=\"743\"\u003e\n\u003cp data-start=\"670\" data-end=\"743\"\u003eMultiple Premium Base Gaskets (varied thickness for compression tuning)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"744\" data-end=\"808\"\u003e\n\u003cp data-start=\"746\" data-end=\"808\"\u003eAdditional high-quality gaskets needed for a top end rebuild\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"810\" data-end=\"826\"\u003e📦 \u003cstrong data-start=\"813\" data-end=\"824\"\u003eFitment\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"827\" data-end=\"855\"\u003e\n\u003cli data-start=\"827\" data-end=\"855\"\u003e\n\u003cp data-start=\"829\" data-end=\"855\"\u003eYamaha YZ125 (1999–2004)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"857\" data-end=\"880\"\u003e🛡️ \u003cstrong data-start=\"861\" data-end=\"878\"\u003eWarranty Info\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"881\" data-end=\"1064\"\u003e\n\u003cli data-start=\"881\" data-end=\"925\"\u003e\n\u003cp data-start=\"883\" data-end=\"925\"\u003eBacked by Athena’s manufacturer warranty\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"926\" data-end=\"967\"\u003e\n\u003cp data-start=\"928\" data-end=\"967\"\u003eProfessional installation recommended\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"968\" data-end=\"1064\"\u003e\n\u003cp data-start=\"970\" data-end=\"1064\"\u003eNote: Kit does \u003cstrong data-start=\"985\" data-end=\"992\"\u003enot\u003c\/strong\u003e include valve stem seals, rubber parts, shims, or other fiber gaskets\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1066\" data-end=\"1087\"\u003e🔑 \u003cstrong data-start=\"1069\" data-end=\"1085\"\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1088\" data-end=\"1484\"\u003e\n\u003cli data-start=\"1088\" data-end=\"1161\"\u003e\n\u003cp data-start=\"1090\" data-end=\"1161\"\u003eDesigned for pro, semi-pro, and amateur riders who rebuild mid-season\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1162\" data-end=\"1233\"\u003e\n\u003cp data-start=\"1164\" data-end=\"1233\"\u003eMLS head gasket provides superior sealing and compression retention\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1234\" data-end=\"1310\"\u003e\n\u003cp data-start=\"1236\" data-end=\"1310\"\u003eBase gaskets included in multiple thicknesses for compression adjustment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1311\" data-end=\"1410\"\u003e\n\u003cp data-start=\"1313\" data-end=\"1410\"\u003eGives the option of running pump gas with stock compression or race gas with higher compression\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1411\" data-end=\"1484\"\u003e\n\u003cp data-start=\"1413\" data-end=\"1484\"\u003eBuilt for durability in high-performance 2-stroke racing environments\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Parts Unlimited","offers":[{"title":"Default Title","offer_id":46777890373857,"sku":"400485600116","price":26.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/yamaha-yz125-athena-top-end-gasket-kit-19992004-8569600.jpg?v=1763567696"},{"product_id":"yamaha-yz125-athena-top-end-gasket-kit-2005-2022","title":"Yamaha YZ125 Athena Top End Gasket Kit (2005–2022)","description":"\u003ch1 data-start=\"132\" data-end=\"197\"\u003eYamaha YZ125 Athena Top End Gasket Kit – 2-Stroke (2005–2022)\u003c\/h1\u003e\n\u003cp data-start=\"199\" data-end=\"590\"\u003e🛠️ \u003cstrong data-start=\"203\" data-end=\"218\"\u003eDescription\u003c\/strong\u003e\u003cbr data-start=\"218\" data-end=\"221\"\u003eKeep your Yamaha YZ125 running strong with this Athena Top End Gasket Kit. Designed for 2005–2022 models, this kit provides the essential gaskets for freshening up your top end. Built with MLS (multi-layered steel) head gasket technology and premium base gaskets, Athena delivers the compression reliability and sealing strength needed for racing or regular rebuilds.\u003c\/p\u003e\n\u003cp data-start=\"592\" data-end=\"615\"\u003e✅ \u003cstrong data-start=\"594\" data-end=\"613\"\u003eWhat’s Included\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"616\" data-end=\"809\"\u003e\n\u003cli data-start=\"616\" data-end=\"677\"\u003e\n\u003cp data-start=\"618\" data-end=\"677\"\u003eAthena MLS Head Gasket (multi-layered steel construction)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"678\" data-end=\"755\"\u003e\n\u003cp data-start=\"680\" data-end=\"755\"\u003eMultiple Premium Base Gaskets (varied thicknesses for compression tuning)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"756\" data-end=\"809\"\u003e\n\u003cp data-start=\"758\" data-end=\"809\"\u003eAdditional gaskets for a complete top end refresh\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"811\" data-end=\"827\"\u003e📦 \u003cstrong data-start=\"814\" data-end=\"825\"\u003eFitment\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"828\" data-end=\"856\"\u003e\n\u003cli data-start=\"828\" data-end=\"856\"\u003e\n\u003cp data-start=\"830\" data-end=\"856\"\u003eYamaha YZ125 (2005–2022)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"858\" data-end=\"881\"\u003e🛡️ \u003cstrong data-start=\"862\" data-end=\"879\"\u003eWarranty Info\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"882\" data-end=\"1055\"\u003e\n\u003cli data-start=\"882\" data-end=\"916\"\u003e\n\u003cp data-start=\"884\" data-end=\"916\"\u003eManufacturer warranty included\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"917\" data-end=\"958\"\u003e\n\u003cp data-start=\"919\" data-end=\"958\"\u003eProfessional installation recommended\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"959\" data-end=\"1055\"\u003e\n\u003cp data-start=\"961\" data-end=\"1055\"\u003eNote: Kit does \u003cstrong data-start=\"976\" data-end=\"983\"\u003enot\u003c\/strong\u003e include valve stem seals, rubber parts, shims, or other fiber gaskets\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1057\" data-end=\"1078\"\u003e🔑 \u003cstrong data-start=\"1060\" data-end=\"1076\"\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1079\" data-end=\"1441\"\u003e\n\u003cli data-start=\"1079\" data-end=\"1134\"\u003e\n\u003cp data-start=\"1081\" data-end=\"1134\"\u003ePurpose-built for pro, semi-pro, and amateur riders\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1135\" data-end=\"1202\"\u003e\n\u003cp data-start=\"1137\" data-end=\"1202\"\u003eMLS head gasket ensures reliable seal and compression retention\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1203\" data-end=\"1279\"\u003e\n\u003cp data-start=\"1205\" data-end=\"1279\"\u003eBase gaskets in multiple thicknesses let you fine-tune compression ratio\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1280\" data-end=\"1365\"\u003e\n\u003cp data-start=\"1282\" data-end=\"1365\"\u003eGives option to run pump gas (stock compression) or race gas (higher compression)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1366\" data-end=\"1441\"\u003e\n\u003cp data-start=\"1368\" data-end=\"1441\"\u003eHigh-performance gasket materials withstand extreme temps and pressures\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Parts Unlimited","offers":[{"title":"Default Title","offer_id":46777891258593,"sku":"0934-0348","price":26.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/yamaha-yz125-athena-top-end-gasket-kit-20052022-4732923.jpg?v=1763566894"},{"product_id":"yamaha-yz125-athena-complete-gasket-kit-2005-2022","title":"Yamaha YZ125 Athena Complete Gasket Kit (2005–2022)","description":"\u003ch1 data-start=\"120\" data-end=\"186\"\u003eYamaha YZ125 Athena Complete Gasket Kit – 2-Stroke (2005–2022)\u003c\/h1\u003e\n\u003cp data-start=\"188\" data-end=\"565\"\u003e🛠️ \u003cstrong data-start=\"192\" data-end=\"207\"\u003eDescription\u003c\/strong\u003e\u003cbr data-start=\"207\" data-end=\"210\"\u003eRebuild your Yamaha YZ125 with confidence using the Athena Complete Gasket Kit. Covering both top and bottom end, this premium gasket set includes everything needed to restore sealing strength and reliability across your engine. Built with advanced materials, Athena gaskets are designed for high-performance 2-stroke racing and long-lasting durability.\u003c\/p\u003e\n\u003cp data-start=\"567\" data-end=\"590\"\u003e✅ \u003cstrong data-start=\"569\" data-end=\"588\"\u003eWhat’s Included\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"591\" data-end=\"840\"\u003e\n\u003cli data-start=\"591\" data-end=\"645\"\u003e\n\u003cp data-start=\"593\" data-end=\"645\"\u003eComplete Athena Engine Gasket Kit for Yamaha YZ125\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"646\" data-end=\"703\"\u003e\n\u003cp data-start=\"648\" data-end=\"703\"\u003eHead Gasket (rubber-coated spring steel construction)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"704\" data-end=\"748\"\u003e\n\u003cp data-start=\"706\" data-end=\"748\"\u003eBase Gaskets (soft steel, rubber-coated)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"749\" data-end=\"840\"\u003e\n\u003cp data-start=\"751\" data-end=\"840\"\u003eAll essential gaskets and rubber components for full engine rebuilds (top \u0026amp; bottom end)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"842\" data-end=\"858\"\u003e📦 \u003cstrong data-start=\"845\" data-end=\"856\"\u003eFitment\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"859\" data-end=\"887\"\u003e\n\u003cli data-start=\"859\" data-end=\"887\"\u003e\n\u003cp data-start=\"861\" data-end=\"887\"\u003eYamaha YZ125 (2005–2022)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"889\" data-end=\"912\"\u003e🛡️ \u003cstrong data-start=\"893\" data-end=\"910\"\u003eWarranty Info\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"913\" data-end=\"1034\"\u003e\n\u003cli data-start=\"913\" data-end=\"947\"\u003e\n\u003cp data-start=\"915\" data-end=\"947\"\u003eManufacturer warranty included\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"948\" data-end=\"989\"\u003e\n\u003cp data-start=\"950\" data-end=\"989\"\u003eProfessional installation recommended\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"990\" data-end=\"1034\"\u003e\n\u003cp data-start=\"992\" data-end=\"1034\"\u003eNote: Oil seals not included in this kit\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1036\" data-end=\"1057\"\u003e🔑 \u003cstrong data-start=\"1039\" data-end=\"1055\"\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1058\" data-end=\"1479\"\u003e\n\u003cli data-start=\"1058\" data-end=\"1118\"\u003e\n\u003cp data-start=\"1060\" data-end=\"1118\"\u003eOEM-quality complete gasket set for Yamaha YZ125 engines\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1119\" data-end=\"1207\"\u003e\n\u003cp data-start=\"1121\" data-end=\"1207\"\u003eRubber-coated spring steel head gasket ensures strong sealing under high compression\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1208\" data-end=\"1276\"\u003e\n\u003cp data-start=\"1210\" data-end=\"1276\"\u003eHigh-temp blue silicone beading applied to critical flat gaskets\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1277\" data-end=\"1347\"\u003e\n\u003cp data-start=\"1279\" data-end=\"1347\"\u003eSoft steel base gaskets offer high springback and tensile strength\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1348\" data-end=\"1425\"\u003e\n\u003cp data-start=\"1350\" data-end=\"1425\"\u003eTransparent coating resists extreme heat and ensures long-term durability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1426\" data-end=\"1479\"\u003e\n\u003cp data-start=\"1428\" data-end=\"1479\"\u003eDesigned for both top-end and bottom-end rebuilds\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Parts Unlimited","offers":[{"title":"Default Title","offer_id":46777892438241,"sku":"0934-0353","price":46.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/yamaha-yz125-athena-complete-gasket-kit-20052022-1976852.jpg?v=1763567086"},{"product_id":"honda-crf250r-rx-athena-stock-bore-cylinder-kit-2018-2019","title":"Honda CRF250R\/RX Athena Stock Bore Cylinder Kit (2018–2019)","description":"\u003ch1 data-start=\"177\" data-end=\"264\"\u003eHonda CRF250R \/ CRF250RX Athena 79mm Stock Bore Cylinder Kit – 4-Stroke (2018–2019)\u003c\/h1\u003e\n\u003cp data-start=\"266\" data-end=\"633\"\u003e🛠️ \u003cstrong data-start=\"270\" data-end=\"285\"\u003eDescription\u003c\/strong\u003e\u003cbr data-start=\"285\" data-end=\"288\"\u003eBring your Honda CRF250R or CRF250RX back to peak performance with this Athena Stock Bore Cylinder Kit. Featuring a factory-spec 79mm cylinder, forged piston, and complete gasket set, this kit is engineered for maximum durability, compression, and race-ready power. Perfect for riders who demand OEM reliability with Athena’s performance edge.\u003c\/p\u003e\n\u003cp data-start=\"635\" data-end=\"658\"\u003e✅ \u003cstrong data-start=\"637\" data-end=\"656\"\u003eWhat’s Included\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"659\" data-end=\"997\"\u003e\n\u003cli data-start=\"659\" data-end=\"719\"\u003e\n\u003cp data-start=\"661\" data-end=\"719\"\u003eAthena 79mm Nikasil-Coated Cylinder (Stock Bore – 250cc)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"720\" data-end=\"801\"\u003e\n\u003cp data-start=\"722\" data-end=\"801\"\u003eAthena Forged OEM-Style Domed Piston Kit (piston, rings, wrist pin, circlips)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"802\" data-end=\"865\"\u003e\n\u003cp data-start=\"804\" data-end=\"865\"\u003eAthena Top End Gasket Set (all required seals and hardware)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"866\" data-end=\"946\"\u003e\n\u003cp data-start=\"868\" data-end=\"946\"\u003eHigh-Performance Hard Anodized Power Valves (not compatible with OEM valves)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"947\" data-end=\"997\"\u003e\n\u003cp data-start=\"949\" data-end=\"997\"\u003eAll brand-new components in original packaging\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"999\" data-end=\"1015\"\u003e📦 \u003cstrong data-start=\"1002\" data-end=\"1013\"\u003eFitment\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1016\" data-end=\"1076\"\u003e\n\u003cli data-start=\"1016\" data-end=\"1045\"\u003e\n\u003cp data-start=\"1018\" data-end=\"1045\"\u003eHonda CRF250R (2018–2019)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1046\" data-end=\"1076\"\u003e\n\u003cp data-start=\"1048\" data-end=\"1076\"\u003eHonda CRF250RX (2018–2019)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1078\" data-end=\"1101\"\u003e🛡️ \u003cstrong data-start=\"1082\" data-end=\"1099\"\u003eWarranty Info\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1102\" data-end=\"1289\"\u003e\n\u003cli data-start=\"1102\" data-end=\"1146\"\u003e\n\u003cp data-start=\"1104\" data-end=\"1146\"\u003eBacked by Athena’s manufacturer warranty\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1147\" data-end=\"1188\"\u003e\n\u003cp data-start=\"1149\" data-end=\"1188\"\u003eProfessional installation recommended\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1189\" data-end=\"1289\"\u003e\n\u003cp data-start=\"1191\" data-end=\"1289\"\u003eWarranty does not cover failures caused by improper installation, tuning, or break-in procedures\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1291\" data-end=\"1312\"\u003e🔑 \u003cstrong data-start=\"1294\" data-end=\"1310\"\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1313\" data-end=\"1662\"\u003e\n\u003cli data-start=\"1313\" data-end=\"1367\"\u003e\n\u003cp data-start=\"1315\" data-end=\"1367\"\u003eStock bore 79mm (250cc) – 13.9:1 compression ratio\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1368\" data-end=\"1431\"\u003e\n\u003cp data-start=\"1370\" data-end=\"1431\"\u003eAluminum cylinder with nickel-carbide coating for longevity\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1432\" data-end=\"1515\"\u003e\n\u003cp data-start=\"1434\" data-end=\"1515\"\u003ePorted to \u003cstrong data-start=\"1444\" data-end=\"1476\"\u003eFactory Works specifications\u003c\/strong\u003e for improved airflow and performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1516\" data-end=\"1576\"\u003e\n\u003cp data-start=\"1518\" data-end=\"1576\"\u003eForged piston kit for race-level durability and strength\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1577\" data-end=\"1617\"\u003e\n\u003cp data-start=\"1579\" data-end=\"1617\"\u003eComplete top end gasket set included\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1618\" data-end=\"1662\"\u003e\n\u003cp data-start=\"1620\" data-end=\"1662\"\u003eDirect OEM replacement, no head included\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Parts Unlimited","offers":[{"title":"Default Title","offer_id":46777893814497,"sku":"0931-0955","price":772.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/honda-crf250rrx-athena-stock-bore-cylinder-kit-20182019-3934921.jpg?v=1763568459"},{"product_id":"yamaha-yz450f-athena-stock-bore-cylinder-kit-2018-2019","title":"Yamaha YZ450F Athena Stock Bore Cylinder Kit (2018–2019)","description":"\u003ch1 data-start=\"174\" data-end=\"250\"\u003eYamaha YZ450F Athena 97mm Stock Bore Cylinder Kit – 4-Stroke (2018–2019)\u003c\/h1\u003e\n\u003cp data-start=\"252\" data-end=\"647\"\u003e🛠️ \u003cstrong data-start=\"256\" data-end=\"271\"\u003eDescription\u003c\/strong\u003e\u003cbr data-start=\"271\" data-end=\"274\"\u003eRestore your Yamaha YZ450F’s factory performance with this Athena Stock Bore Cylinder Kit. Designed with a 97mm bore and forged piston, this kit is engineered for OEM fitment and durability while delivering Factory Works-level performance. With nickel-carbide coating and precision porting, it provides reliability and power for riders who demand the best from their 450.\u003c\/p\u003e\n\u003cp data-start=\"649\" data-end=\"672\"\u003e✅ \u003cstrong data-start=\"651\" data-end=\"670\"\u003eWhat’s Included\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"673\" data-end=\"1006\"\u003e\n\u003cli data-start=\"673\" data-end=\"733\"\u003e\n\u003cp data-start=\"675\" data-end=\"733\"\u003eAthena 97mm Nikasil-Coated Cylinder (Stock Bore – 450cc)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"734\" data-end=\"815\"\u003e\n\u003cp data-start=\"736\" data-end=\"815\"\u003eAthena Forged OEM-Style Domed Piston Kit (piston, rings, wrist pin, circlips)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"816\" data-end=\"879\"\u003e\n\u003cp data-start=\"818\" data-end=\"879\"\u003eAthena Top End Gasket Set (all required seals and hardware)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"880\" data-end=\"960\"\u003e\n\u003cp data-start=\"882\" data-end=\"960\"\u003eHigh-Performance Hard Anodized Power Valves (not compatible with OEM valves)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"961\" data-end=\"1006\"\u003e\n\u003cp data-start=\"963\" data-end=\"1006\"\u003eAll parts brand new in original packaging\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1008\" data-end=\"1024\"\u003e📦 \u003cstrong data-start=\"1011\" data-end=\"1022\"\u003eFitment\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1025\" data-end=\"1054\"\u003e\n\u003cli data-start=\"1025\" data-end=\"1054\"\u003e\n\u003cp data-start=\"1027\" data-end=\"1054\"\u003eYamaha YZ450F (2018–2019)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1056\" data-end=\"1079\"\u003e🛡️ \u003cstrong data-start=\"1060\" data-end=\"1077\"\u003eWarranty Info\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1080\" data-end=\"1244\"\u003e\n\u003cli data-start=\"1080\" data-end=\"1114\"\u003e\n\u003cp data-start=\"1082\" data-end=\"1114\"\u003eManufacturer warranty included\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1115\" data-end=\"1156\"\u003e\n\u003cp data-start=\"1117\" data-end=\"1156\"\u003eProfessional installation recommended\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1157\" data-end=\"1244\"\u003e\n\u003cp data-start=\"1159\" data-end=\"1244\"\u003eWarranty void if improper installation, tuning, or break-in procedures are followed\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1246\" data-end=\"1267\"\u003e🔑 \u003cstrong data-start=\"1249\" data-end=\"1265\"\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1268\" data-end=\"1628\"\u003e\n\u003cli data-start=\"1268\" data-end=\"1322\"\u003e\n\u003cp data-start=\"1270\" data-end=\"1322\"\u003eStock bore 97mm (450cc) – 12.8:1 compression ratio\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1323\" data-end=\"1387\"\u003e\n\u003cp data-start=\"1325\" data-end=\"1387\"\u003eAluminum cylinder with nickel-carbide coating for durability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1388\" data-end=\"1460\"\u003e\n\u003cp data-start=\"1390\" data-end=\"1460\"\u003ePorted to \u003cstrong data-start=\"1400\" data-end=\"1432\"\u003eFactory Works specifications\u003c\/strong\u003e for optimized performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1461\" data-end=\"1527\"\u003e\n\u003cp data-start=\"1463\" data-end=\"1527\"\u003eForged piston kit for strength under extreme racing conditions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1528\" data-end=\"1568\"\u003e\n\u003cp data-start=\"1530\" data-end=\"1568\"\u003eComplete top end gasket set included\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1569\" data-end=\"1628\"\u003e\n\u003cp data-start=\"1571\" data-end=\"1628\"\u003eDirect OEM replacement – does not include cylinder head\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Parts Unlimited","offers":[{"title":"Default Title","offer_id":46777895715041,"sku":"0931-0959","price":772.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/yamaha-yz450f-athena-stock-bore-cylinder-kit-20182019-8986631.jpg?v=1764018665"},{"product_id":"kawasaki-kx450f-athena-stock-bore-cylinder-kit-2016-2018","title":"Kawasaki KX450F Athena Stock Bore Cylinder Kit (2016–2018)","description":"\u003ch1 data-start=\"176\" data-end=\"254\"\u003eKawasaki KX450F Athena 96mm Stock Bore Cylinder Kit – 4-Stroke (2016–2018)\u003c\/h1\u003e\n\u003cp data-start=\"256\" data-end=\"639\"\u003e🛠️ \u003cstrong data-start=\"260\" data-end=\"275\"\u003eDescription\u003c\/strong\u003e\u003cbr data-start=\"275\" data-end=\"278\"\u003eBring your Kawasaki KX450F back to peak performance with this Athena Stock Bore Cylinder Kit. Featuring a precision-engineered 96mm cylinder, forged piston, and top end gasket set, this kit is built to OEM standards with \u003cstrong data-start=\"499\" data-end=\"524\"\u003eFactory Works porting\u003c\/strong\u003e for superior airflow and race-ready reliability. Perfect for a full top-end refresh or preventative maintenance.\u003c\/p\u003e\n\u003cp data-start=\"641\" data-end=\"664\"\u003e✅ \u003cstrong data-start=\"643\" data-end=\"662\"\u003eWhat’s Included\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"665\" data-end=\"1010\"\u003e\n\u003cli data-start=\"665\" data-end=\"725\"\u003e\n\u003cp data-start=\"667\" data-end=\"725\"\u003eAthena 96mm Nikasil-Coated Cylinder (Stock Bore – 450cc)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"726\" data-end=\"807\"\u003e\n\u003cp data-start=\"728\" data-end=\"807\"\u003eAthena Forged OEM-Style Domed Piston Kit (piston, rings, wrist pin, circlips)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"808\" data-end=\"871\"\u003e\n\u003cp data-start=\"810\" data-end=\"871\"\u003eAthena Top End Gasket Set (all required seals and hardware)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"872\" data-end=\"952\"\u003e\n\u003cp data-start=\"874\" data-end=\"952\"\u003eHigh-Performance Hard Anodized Power Valves (not compatible with OEM valves)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"953\" data-end=\"1010\"\u003e\n\u003cp data-start=\"955\" data-end=\"1010\"\u003eAll parts brand new, sealed in manufacturer packaging\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1012\" data-end=\"1028\"\u003e📦 \u003cstrong data-start=\"1015\" data-end=\"1026\"\u003eFitment\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1029\" data-end=\"1060\"\u003e\n\u003cli data-start=\"1029\" data-end=\"1060\"\u003e\n\u003cp data-start=\"1031\" data-end=\"1060\"\u003eKawasaki KX450F (2016–2018)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1062\" data-end=\"1085\"\u003e🛡️ \u003cstrong data-start=\"1066\" data-end=\"1083\"\u003eWarranty Info\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1086\" data-end=\"1233\"\u003e\n\u003cli data-start=\"1086\" data-end=\"1120\"\u003e\n\u003cp data-start=\"1088\" data-end=\"1120\"\u003eManufacturer warranty included\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1121\" data-end=\"1162\"\u003e\n\u003cp data-start=\"1123\" data-end=\"1162\"\u003eProfessional installation recommended\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1163\" data-end=\"1233\"\u003e\n\u003cp data-start=\"1165\" data-end=\"1233\"\u003eWarranty does not cover improper installation, tuning, or break-in\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1235\" data-end=\"1256\"\u003e🔑 \u003cstrong data-start=\"1238\" data-end=\"1254\"\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1257\" data-end=\"1598\"\u003e\n\u003cli data-start=\"1257\" data-end=\"1311\"\u003e\n\u003cp data-start=\"1259\" data-end=\"1311\"\u003eStock bore 96mm (450cc) – 12.3:1 compression ratio\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1312\" data-end=\"1384\"\u003e\n\u003cp data-start=\"1314\" data-end=\"1384\"\u003eAluminum cylinder with nickel-carbide coating for extreme durability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1385\" data-end=\"1443\"\u003e\n\u003cp data-start=\"1387\" data-end=\"1443\"\u003ePorted to \u003cstrong data-start=\"1397\" data-end=\"1420\"\u003eFactory Works specs\u003c\/strong\u003e for added horsepower\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1444\" data-end=\"1503\"\u003e\n\u003cp data-start=\"1446\" data-end=\"1503\"\u003eForged piston kit for superior performance and strength\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1504\" data-end=\"1542\"\u003e\n\u003cp data-start=\"1506\" data-end=\"1542\"\u003eIncludes Athena top end gasket set\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1543\" data-end=\"1598\"\u003e\n\u003cp data-start=\"1545\" data-end=\"1598\"\u003eDirect OEM replacement – cylinder head not included\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Parts Unlimited","offers":[{"title":"Default Title","offer_id":46777901056225,"sku":"0931-0961","price":772.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/kawasaki-kx450f-athena-stock-bore-cylinder-kit-20162018-8198772.png?v=1763567281"},{"product_id":"athena-connecting-rod-kit-ktm-husqvarna-gasgas-250f-2016-2023","title":"Athena Connecting Rod Kit – KTM Husqvarna GasGas 250F (2016–2023)","description":"\u003ch1 data-start=\"161\" data-end=\"234\"\u003eAthena Connecting Rod Kit – KTM \/ Husqvarna \/ GasGas 250F (2016–2023)\u003c\/h1\u003e\n\u003cp data-start=\"236\" data-end=\"583\"\u003e🛠️ \u003cstrong data-start=\"240\" data-end=\"255\"\u003eDescription\u003c\/strong\u003e\u003cbr data-start=\"255\" data-end=\"258\"\u003eKeep your 250F engine running at peak performance with the Athena Connecting Rod Kit. Manufactured in Japan using high-quality materials and advanced treatments, this rod is designed to match OEM durability and performance while reducing stress under extreme riding conditions. Perfect for motocross, enduro, or street use.\u003c\/p\u003e\n\u003cp data-start=\"585\" data-end=\"608\"\u003e✅ \u003cstrong data-start=\"587\" data-end=\"606\"\u003eWhat’s Included\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"609\" data-end=\"747\"\u003e\n\u003cli data-start=\"609\" data-end=\"627\"\u003e\n\u003cp data-start=\"611\" data-end=\"627\"\u003eConnecting rod\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"628\" data-end=\"647\"\u003e\n\u003cp data-start=\"630\" data-end=\"647\"\u003eNeedle bearings\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"648\" data-end=\"660\"\u003e\n\u003cp data-start=\"650\" data-end=\"660\"\u003eCrankpin\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"661\" data-end=\"704\"\u003e\n\u003cp data-start=\"663\" data-end=\"704\"\u003eSmall end pins \u0026amp; shims (where required)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"705\" data-end=\"747\"\u003e\n\u003cp data-start=\"707\" data-end=\"747\"\u003eAll components precision-made in Japan\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"749\" data-end=\"765\"\u003e📦 \u003cstrong data-start=\"752\" data-end=\"763\"\u003eFitment\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"766\" data-end=\"1071\"\u003e\n\u003cli data-start=\"766\" data-end=\"884\"\u003e\n\u003cp data-start=\"768\" data-end=\"777\"\u003e\u003cstrong data-start=\"768\" data-end=\"775\"\u003eKTM\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"781\" data-end=\"884\"\u003e\n\u003cli data-start=\"781\" data-end=\"805\"\u003e\n\u003cp data-start=\"783\" data-end=\"805\"\u003e250 SX-F (2016–2022)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"809\" data-end=\"833\"\u003e\n\u003cp data-start=\"811\" data-end=\"833\"\u003e250 XC-F (2019–2022)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"862\"\u003e\n\u003cp data-start=\"839\" data-end=\"862\"\u003e250 EXC-F (2017–2022)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"866\" data-end=\"884\"\u003e\n\u003cp data-start=\"868\" data-end=\"884\"\u003e250 EXC (2023)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"885\" data-end=\"975\"\u003e\n\u003cp data-start=\"887\" data-end=\"902\"\u003e\u003cstrong data-start=\"887\" data-end=\"900\"\u003eHusqvarna\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"906\" data-end=\"975\"\u003e\n\u003cli data-start=\"906\" data-end=\"928\"\u003e\n\u003cp data-start=\"908\" data-end=\"928\"\u003eFC 250 (2016–2022)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"932\" data-end=\"954\"\u003e\n\u003cp data-start=\"934\" data-end=\"954\"\u003eFE 250 (2017–2022)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"958\" data-end=\"975\"\u003e\n\u003cp data-start=\"960\" data-end=\"975\"\u003eFE 250 (2022)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"976\" data-end=\"1071\"\u003e\n\u003cp data-start=\"978\" data-end=\"990\"\u003e\u003cstrong data-start=\"978\" data-end=\"988\"\u003eGasGas\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"994\" data-end=\"1071\"\u003e\n\u003cli data-start=\"994\" data-end=\"1017\"\u003e\n\u003cp data-start=\"996\" data-end=\"1017\"\u003eMC 250F (2021–2023)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1021\" data-end=\"1044\"\u003e\n\u003cp data-start=\"1023\" data-end=\"1044\"\u003eEC 250F (2021–2023)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1048\" data-end=\"1071\"\u003e\n\u003cp data-start=\"1050\" data-end=\"1071\"\u003eEX 250F (2021–2023)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1073\" data-end=\"1095\"\u003e🛡️ \u003cstrong data-start=\"1077\" data-end=\"1093\"\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1096\" data-end=\"1345\"\u003e\n\u003cli data-start=\"1096\" data-end=\"1138\"\u003e\n\u003cp data-start=\"1098\" data-end=\"1138\"\u003eOEM-grade connecting rod made in Japan\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1139\" data-end=\"1191\"\u003e\n\u003cp data-start=\"1141\" data-end=\"1191\"\u003eLightweight construction with OEM-spec materials\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1192\" data-end=\"1243\"\u003e\n\u003cp data-start=\"1194\" data-end=\"1243\"\u003eHigh-frequency treatment for extreme durability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1244\" data-end=\"1293\"\u003e\n\u003cp data-start=\"1246\" data-end=\"1293\"\u003eReduces rotational \u0026amp; alternating stress loads\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1294\" data-end=\"1345\"\u003e\n\u003cp data-start=\"1296\" data-end=\"1345\"\u003eDirect replacement for worn or damaged OEM rods\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1347\" data-end=\"1370\"\u003e🔑 \u003cstrong data-start=\"1350\" data-end=\"1368\"\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1371\" data-end=\"1453\"\u003e\n\u003cli data-start=\"1371\" data-end=\"1394\"\u003e\n\u003cp data-start=\"1373\" data-end=\"1394\"\u003eDisplacement: 250cc\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1395\" data-end=\"1432\"\u003e\n\u003cp data-start=\"1397\" data-end=\"1432\"\u003eStyle: 4-Stroke Off-Road \/ Street\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1433\" data-end=\"1453\"\u003e\n\u003cp data-start=\"1435\" data-end=\"1453\"\u003eWeight: 1.16 lbs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Parts Unlimited","offers":[{"title":"Default Title","offer_id":46778097467617,"sku":"0923-0576","price":257.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/athena-connecting-rod-kit-ktm-husqvarna-gasgas-250f-20162023-8793447.jpg?v=1763567553"},{"product_id":"athena-68mm-big-bore-race-cylinder-kit-yamaha-banshee-350","title":"Athena 68mm Big Bore Race Cylinder Kit – Yamaha Banshee 350 (1987-2012)","description":"\u003ch1 data-start=\"129\" data-end=\"202\"\u003eAthena 68mm Big Bore Race Cylinder Kit – Yamaha Banshee 350 (1987–2012)\u003c\/h1\u003e\n\u003cp data-start=\"204\" data-end=\"447\"\u003e🛠️ Take your Banshee to the next level with the Athena 68mm Big Bore Race Cylinder Kit. This complete package increases displacement to 392cc and is engineered for serious riders who demand maximum performance from their two-stroke machine.\u003c\/p\u003e\n\u003chr data-start=\"449\" data-end=\"452\"\u003e\n\u003ch2 data-start=\"454\" data-end=\"474\"\u003e✅ What’s Included\u003c\/h2\u003e\n\u003cul data-start=\"475\" data-end=\"799\"\u003e\n\u003cli data-start=\"475\" data-end=\"529\"\u003e\n\u003cp data-start=\"477\" data-end=\"529\"\u003e(2) Aluminum cylinders with nickel-carbide coating\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"530\" data-end=\"589\"\u003e\n\u003cp data-start=\"532\" data-end=\"589\"\u003e(2) Aluminum cylinder heads with removable bronze domes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"590\" data-end=\"673\"\u003e\n\u003cp data-start=\"592\" data-end=\"673\"\u003eHigh-performance, hard anodized Athena power valves (OEM valves not compatible)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"674\" data-end=\"736\"\u003e\n\u003cp data-start=\"676\" data-end=\"736\"\u003e(2) Cast lite flat-top pistons with rings, clips, and pins\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"737\" data-end=\"799\"\u003e\n\u003cp data-start=\"739\" data-end=\"799\"\u003eComplete Athena top-end gasket set with seals and hardware\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"801\" data-end=\"804\"\u003e\n\u003ch2 data-start=\"806\" data-end=\"819\"\u003e📦 Fitment\u003c\/h2\u003e\n\u003cul data-start=\"820\" data-end=\"923\"\u003e\n\u003cli data-start=\"820\" data-end=\"923\"\u003e\n\u003cp data-start=\"822\" data-end=\"923\"\u003e\u003cstrong data-start=\"822\" data-end=\"857\"\u003e1987–2006 Yamaha YFZ350 Banshee\u003c\/strong\u003e\u003cbr data-start=\"857\" data-end=\"860\"\u003e\u003cem data-start=\"862\" data-end=\"921\"\u003eFits all standard and special edition Banshee 350 models.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"925\" data-end=\"928\"\u003e\n\u003ch2 data-start=\"930\" data-end=\"950\"\u003e🛡️ Warranty Info\u003c\/h2\u003e\n\u003cp data-start=\"951\" data-end=\"1134\"\u003eAthena products are covered against manufacturing defects. This warranty does not apply to normal wear, improper installation, or damage caused by lack of maintenance or racing use.\u003c\/p\u003e\n\u003chr data-start=\"1136\" data-end=\"1139\"\u003e\n\u003ch2 data-start=\"1141\" data-end=\"1159\"\u003e🔑 Key Features\u003c\/h2\u003e\n\u003cul data-start=\"1160\" data-end=\"1501\"\u003e\n\u003cli data-start=\"1160\" data-end=\"1214\"\u003e\n\u003cp data-start=\"1162\" data-end=\"1214\"\u003eDisplacement boost to \u003cstrong data-start=\"1184\" data-end=\"1193\"\u003e392cc\u003c\/strong\u003e with 68.00 mm bore\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1215\" data-end=\"1277\"\u003e\n\u003cp data-start=\"1217\" data-end=\"1277\"\u003eLightweight aluminum cylinders with nickel-carbide coating\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1278\" data-end=\"1337\"\u003e\n\u003cp data-start=\"1280\" data-end=\"1337\"\u003eCNC-machined cylinder heads with removable bronze domes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1338\" data-end=\"1385\"\u003e\n\u003cp data-start=\"1340\" data-end=\"1385\"\u003eSpecially designed Athena race power valves\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1386\" data-end=\"1439\"\u003e\n\u003cp data-start=\"1388\" data-end=\"1439\"\u003eIncludes complete piston kits and top-end gaskets\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1440\" data-end=\"1501\"\u003e\n\u003cp data-start=\"1442\" data-end=\"1501\"\u003eDesigned for high-performance two-stroke ATV applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Parts Unlimited","offers":[{"title":"Default Title","offer_id":46836832829665,"sku":"Fixed-0931-0249","price":999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/athena-68mm-big-bore-race-cylinder-kit-yamaha-banshee-350-3257208.jpg?v=1763567613"},{"product_id":"athena-piston-kit-with-gaskets-honda-crf450r-crf450rx-2021-2025-95-95-mm","title":"Athena Piston Kit with Gaskets – Honda CRF450R \/ CRF450RX (2021–2025, 95.95 mm)","description":"\u003ch1 data-start=\"211\" data-end=\"296\"\u003e🛠️ Athena Piston Kit with Gaskets – Honda CRF450R \/ CRF450RX (2021–2025, 95.95 mm)\u003c\/h1\u003e\n\u003cp data-start=\"298\" data-end=\"587\"\u003eUpgrade your CRF450’s top end with the \u003cstrong data-start=\"337\" data-end=\"371\"\u003eAthena Piston Kit with Gaskets\u003c\/strong\u003e, engineered for reliability and performance. Built from a high-silicon aluminum alloy, this kit ensures OEM-level dependability while offering improved resistance, smoother combustion, and long-lasting durability.\u003c\/p\u003e\n\u003chr data-start=\"589\" data-end=\"592\"\u003e\n\u003ch2 data-start=\"594\" data-end=\"614\"\u003e✅ What’s Included\u003c\/h2\u003e\n\u003cul data-start=\"615\" data-end=\"803\"\u003e\n\u003cli data-start=\"615\" data-end=\"660\"\u003e\n\u003cp data-start=\"617\" data-end=\"660\"\u003eForged 95.95 mm \u003cstrong data-start=\"633\" data-end=\"658\"\u003ealuminum alloy piston\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"661\" data-end=\"743\"\u003e\n\u003cp data-start=\"663\" data-end=\"743\"\u003e\u003cstrong data-start=\"663\" data-end=\"679\"\u003ePiston rings\u003c\/strong\u003e with Japanese PVD or chromium nitride wear-resistant coatings\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"744\" data-end=\"769\"\u003e\n\u003cp data-start=\"746\" data-end=\"769\"\u003e\u003cstrong data-start=\"746\" data-end=\"767\"\u003eWrist pin \u0026amp; clips\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"770\" data-end=\"803\"\u003e\n\u003cp data-start=\"772\" data-end=\"803\"\u003e\u003cstrong data-start=\"772\" data-end=\"801\"\u003eAthena top-end gasket set\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"805\" data-end=\"808\"\u003e\n\u003ch2 data-start=\"810\" data-end=\"823\"\u003e📦 Fitment\u003c\/h2\u003e\n\u003cul data-start=\"824\" data-end=\"890\"\u003e\n\u003cli data-start=\"824\" data-end=\"856\"\u003e\n\u003cp data-start=\"826\" data-end=\"856\"\u003e\u003cstrong data-start=\"826\" data-end=\"843\"\u003eHonda CRF450R\u003c\/strong\u003e: 2021–2025\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"857\" data-end=\"890\"\u003e\n\u003cp data-start=\"859\" data-end=\"890\"\u003e\u003cstrong data-start=\"859\" data-end=\"877\"\u003eHonda CRF450RX\u003c\/strong\u003e: 2021–2025\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"892\" data-end=\"895\"\u003e\n\u003ch2 data-start=\"897\" data-end=\"916\"\u003e🛡️ Key Features\u003c\/h2\u003e\n\u003cul data-start=\"917\" data-end=\"1318\"\u003e\n\u003cli data-start=\"917\" data-end=\"980\"\u003e\n\u003cp data-start=\"919\" data-end=\"980\"\u003e13.5:1 compression ratio for stronger, more efficient power\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"981\" data-end=\"1052\"\u003e\n\u003cp data-start=\"983\" data-end=\"1052\"\u003eReverse-extruded piston design with CNC machining for precision fit\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1053\" data-end=\"1125\"\u003e\n\u003cp data-start=\"1055\" data-end=\"1125\"\u003eReduced friction piston rings for higher performance and longer life\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1126\" data-end=\"1213\"\u003e\n\u003cp data-start=\"1128\" data-end=\"1213\"\u003eSmooth piston profile ensures consistent flame propagation and efficient combustion\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1214\" data-end=\"1318\"\u003e\n\u003cp data-start=\"1216\" data-end=\"1318\"\u003eBuilt from high-performance alloy with high silicon content for maximum strength and heat resistance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Parts Unlimited","offers":[{"title":"Default Title","offer_id":47185238655201,"sku":"0903-1744","price":259.07,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/athena-piston-kit-with-gaskets-honda-crf450r-crf450rx-20212025-9595-mm-4909462.jpg?v=1763567980"},{"product_id":"athena-complete-gasket-kit-honda-crf450r-crf450rx-crf450x-2021-2025","title":"Athena Complete Gasket Kit – Honda CRF450R \/ CRF450RX \/ CRF450X (2021–2025)","description":"\u003ch1 data-start=\"210\" data-end=\"291\"\u003e🛠️ Athena Complete Gasket Kit – Honda CRF450R \/ CRF450RX \/ CRF450X (2021–2025)\u003c\/h1\u003e\n\u003cp data-start=\"293\" data-end=\"580\"\u003eEnsure a perfect seal and long-lasting engine performance with the \u003cstrong data-start=\"360\" data-end=\"390\"\u003eAthena Complete Gasket Kit\u003c\/strong\u003e. Designed for Honda CRF450 models, this kit includes everything you need for a professional top-to-bottom rebuild, manufactured with premium materials to handle extreme heat and pressure.\u003c\/p\u003e\n\u003chr data-start=\"582\" data-end=\"585\"\u003e\n\u003ch2 data-start=\"587\" data-end=\"607\"\u003e✅ What’s Included\u003c\/h2\u003e\n\u003cul data-start=\"608\" data-end=\"898\"\u003e\n\u003cli data-start=\"608\" data-end=\"665\"\u003e\n\u003cp data-start=\"610\" data-end=\"665\"\u003eHead gasket (rubber-coated spring steel construction)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"666\" data-end=\"709\"\u003e\n\u003cp data-start=\"668\" data-end=\"709\"\u003eBase gaskets (rubber-coated soft steel)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"710\" data-end=\"788\"\u003e\n\u003cp data-start=\"712\" data-end=\"788\"\u003eComplete set of critical flat gaskets with high-temp blue silicone beading\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"789\" data-end=\"809\"\u003e\n\u003cp data-start=\"791\" data-end=\"809\"\u003eValve stem seals\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"810\" data-end=\"898\"\u003e\n\u003cp data-start=\"812\" data-end=\"898\"\u003eAll necessary top-quality gaskets, seals, and rubber parts for a full engine rebuild\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"900\" data-end=\"903\"\u003e\n\u003ch2 data-start=\"905\" data-end=\"918\"\u003e📦 Fitment\u003c\/h2\u003e\n\u003cul data-start=\"919\" data-end=\"1018\"\u003e\n\u003cli data-start=\"919\" data-end=\"951\"\u003e\n\u003cp data-start=\"921\" data-end=\"951\"\u003e\u003cstrong data-start=\"921\" data-end=\"938\"\u003eHonda CRF450R\u003c\/strong\u003e: 2021–2025\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"952\" data-end=\"985\"\u003e\n\u003cp data-start=\"954\" data-end=\"985\"\u003e\u003cstrong data-start=\"954\" data-end=\"972\"\u003eHonda CRF450RX\u003c\/strong\u003e: 2021–2025\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"986\" data-end=\"1018\"\u003e\n\u003cp data-start=\"988\" data-end=\"1018\"\u003e\u003cstrong data-start=\"988\" data-end=\"1005\"\u003eHonda CRF450X\u003c\/strong\u003e: 2021–2025\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1020\" data-end=\"1023\"\u003e\n\u003ch2 data-start=\"1025\" data-end=\"1044\"\u003e🛡️ Key Features\u003c\/h2\u003e\n\u003cul data-start=\"1045\" data-end=\"1394\"\u003e\n\u003cli data-start=\"1045\" data-end=\"1114\"\u003e\n\u003cp data-start=\"1047\" data-end=\"1114\"\u003eSteel core gaskets with superior tensile strength and spring-back\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1115\" data-end=\"1183\"\u003e\n\u003cp data-start=\"1117\" data-end=\"1183\"\u003eTransparent coating ensures a perfect seal even at extreme temps\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1184\" data-end=\"1256\"\u003e\n\u003cp data-start=\"1186\" data-end=\"1256\"\u003eHigh-temp silicone beading prevents leaks in the most critical areas\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1257\" data-end=\"1319\"\u003e\n\u003cp data-start=\"1259\" data-end=\"1319\"\u003eIncludes every gasket and seal required for a full rebuild\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1320\" data-end=\"1394\"\u003e\n\u003cp data-start=\"1322\" data-end=\"1394\"\u003ePrecision manufactured to OEM standards for durability and reliability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Parts Unlimited","offers":[{"title":"Default Title","offer_id":47185298292961,"sku":"0934-7472","price":212.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/athena-complete-gasket-kit-honda-crf450r-crf450rx-crf450x-20212025-8988115.jpg?v=1763566792"},{"product_id":"athena-64mm-stock-bore-cylinders-yamaha-banshee-350-pair","title":"Athena 64mm Stock Bore Cylinders — Yamaha Banshee 350 (Pair) (1987-2012)","description":"\u003ch1 data-start=\"0\" data-end=\"62\"\u003eAthena 64mm Stock Bore Cylinders — Yamaha Banshee 350 (Pair)\u003c\/h1\u003e\n\u003cp data-start=\"64\" data-end=\"456\"\u003e🛠️ \u003cstrong data-start=\"68\" data-end=\"102\"\u003eDescription (mobile-optimized)\u003c\/strong\u003e\u003cbr data-start=\"102\" data-end=\"105\"\u003eRefresh your Banshee with \u003cstrong data-start=\"131\" data-end=\"184\"\u003edirect-replacement Athena 64 mm Nikasil cylinders\u003c\/strong\u003e. Designed with \u003cstrong data-start=\"200\" data-end=\"224\"\u003elarger water jackets\u003c\/strong\u003e to help the engine run cooler and \u003cstrong data-start=\"259\" data-end=\"283\"\u003etriple exhaust ports\u003c\/strong\u003e for a wide, exciting powerband, these stock-bore cylinders deliver durability, reliability, and bolt-on performance. \u003cstrong data-start=\"401\" data-end=\"426\"\u003eCylinders only (pair)\u003c\/strong\u003e — use with \u003cstrong data-start=\"438\" data-end=\"455\"\u003e64 mm pistons\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"458\" data-end=\"481\"\u003e✅ \u003cstrong data-start=\"460\" data-end=\"479\"\u003eWhat’s Included\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"482\" data-end=\"733\"\u003e\n\u003cli data-start=\"482\" data-end=\"546\"\u003e\n\u003cp data-start=\"484\" data-end=\"546\"\u003e(2) \u003cstrong data-start=\"488\" data-end=\"529\"\u003eAthena 64 mm Nikasil-plated cylinders\u003c\/strong\u003e (left + right)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"547\" data-end=\"617\"\u003e\n\u003cp data-start=\"549\" data-end=\"617\"\u003eOEM-style casting with \u003cstrong data-start=\"572\" data-end=\"599\"\u003eAZ Quad Parts port spec\u003c\/strong\u003e cast-in details\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"618\" data-end=\"664\"\u003e\n\u003cp data-start=\"620\" data-end=\"664\"\u003ePre-finished bores ready for 64 mm pistons\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"665\" data-end=\"733\"\u003e\n\u003cp data-start=\"667\" data-end=\"733\"\u003eTransfer\/exhaust port architecture with \u003cstrong data-start=\"707\" data-end=\"731\"\u003etriple exhaust ports\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"735\" data-end=\"751\"\u003e📦 \u003cstrong data-start=\"738\" data-end=\"749\"\u003eFitment\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"752\" data-end=\"916\"\u003e\n\u003cli data-start=\"752\" data-end=\"800\"\u003e\n\u003cp data-start=\"754\" data-end=\"800\"\u003e\u003cstrong data-start=\"754\" data-end=\"798\"\u003eYamaha Banshee 350 (All years 1987–2012)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"801\" data-end=\"863\"\u003e\n\u003cp data-start=\"803\" data-end=\"863\"\u003eDirect replacement for \u003cstrong data-start=\"826\" data-end=\"848\"\u003estock bore (64 mm)\u003c\/strong\u003e applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"864\" data-end=\"916\"\u003e\n\u003cp data-start=\"866\" data-end=\"916\"\u003eMust be used with \u003cstrong data-start=\"884\" data-end=\"901\"\u003e64 mm pistons\u003c\/strong\u003e (not included)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"918\" data-end=\"941\"\u003e🛡️ \u003cstrong data-start=\"922\" data-end=\"939\"\u003eWarranty Info\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"942\" data-end=\"1273\"\u003e\n\u003cli data-start=\"942\" data-end=\"1027\"\u003e\n\u003cp data-start=\"944\" data-end=\"1027\"\u003eManufacturer’s \u003cstrong data-start=\"959\" data-end=\"1024\"\u003elimited warranty against defects in materials and workmanship\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1028\" data-end=\"1139\"\u003e\n\u003cp data-start=\"1030\" data-end=\"1139\"\u003eExcludes damage from overheating, detonation, improper tuning, lack of lubrication, or installation errors.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1140\" data-end=\"1273\"\u003e\n\u003cp data-start=\"1142\" data-end=\"1273\"\u003eProfessional installation and correct piston-to-cylinder clearance, ring end-gap, and break-in procedures are strongly recommended.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1275\" data-end=\"1296\"\u003e🔑 \u003cstrong data-start=\"1278\" data-end=\"1294\"\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1297\" data-end=\"1640\"\u003e\n\u003cli data-start=\"1297\" data-end=\"1358\"\u003e\n\u003cp data-start=\"1299\" data-end=\"1358\"\u003e\u003cstrong data-start=\"1299\" data-end=\"1317\"\u003eNikasil plated\u003c\/strong\u003e for low friction and long service life\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1359\" data-end=\"1418\"\u003e\n\u003cp data-start=\"1361\" data-end=\"1418\"\u003e\u003cstrong data-start=\"1361\" data-end=\"1385\"\u003eLarger water jackets\u003c\/strong\u003e to improve cooling performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1419\" data-end=\"1481\"\u003e\n\u003cp data-start=\"1421\" data-end=\"1481\"\u003e\u003cstrong data-start=\"1421\" data-end=\"1445\"\u003eTriple exhaust ports\u003c\/strong\u003e for a broad, responsive powerband\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1482\" data-end=\"1551\"\u003e\n\u003cp data-start=\"1484\" data-end=\"1551\"\u003e\u003cstrong data-start=\"1484\" data-end=\"1510\"\u003eDirect OEM replacement\u003c\/strong\u003e dimensions for straightforward install\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1552\" data-end=\"1592\"\u003e\n\u003cp data-start=\"1554\" data-end=\"1592\"\u003eCast-in \u003cstrong data-start=\"1562\" data-end=\"1590\"\u003eAZ Quad Parts port specs\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1593\" data-end=\"1640\"\u003e\n\u003cp data-start=\"1595\" data-end=\"1640\"\u003ePrecision bores for \u003cstrong data-start=\"1615\" data-end=\"1640\"\u003e64 mm (stock) pistons\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"AZ","offers":[{"title":"Default Title","offer_id":47231807717601,"sku":null,"price":420.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/yamaha-banshee-350-complete-engine-rebuild-kit-oem-64-mm-2742197.webp?v=1763566620"},{"product_id":"athena-cylinder-kit-44-5mm-kx65-2002-2024","title":"Athena Cylinder Kit 44.5mm – KX65 (2002–2024)","description":"\u003cp\u003e\u003cstrong\u003e✓ Fits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2002-2024 Kawasaki KX65\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003e✓ Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e44.5 mm Nikasil-plated cylinder (OEM replacement)\u003c\/li\u003e\n\u003cli\u003eHigh-compression piston (14.2:1)\u003c\/li\u003e\n\u003cli\u003ePiston rings, wrist pin, and circlips\u003c\/li\u003e\n\u003cli\u003eComplete top-end gasket kit\u003c\/li\u003e\n\u003cli\u003eRequired O-rings and seals\u003c\/li\u003e\n\u003cli\u003eOEM-style cylinder with precision Nikasil plating for durability and heat dissipation\u003c\/li\u003e\n\u003cli\u003eForged high-compression piston for increased torque and throttle response\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003e✓ What's Included:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCylinder and piston kit as specified\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eShips fast from DuneGoonShop!\u003c\/p\u003e","brand":"WPS","offers":[{"title":"Default Title","offer_id":47248145350881,"sku":"68-4889","price":731.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/athena-cylinder-kit-445mm-kx65-20022024-8775269.jpg?v=1763566896"},{"product_id":"athena-cylinder-44-5-mm-kx65-2002-2024","title":"Athena Cylinder 44.5 mm – KX65 (2002–2024)","description":"\u003cp\u003e\u003cstrong\u003e✓ Fits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2002-2024 Kawasaki KX65\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003e✓ Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e44.5 mm Nikasil-plated aluminum cylinder (OEM replacement)\u003c\/li\u003e\n\u003cli\u003eFactory-spec porting for consistent power delivery\u003c\/li\u003e\n\u003cli\u003eWider water-jacket design for improved cooling\u003c\/li\u003e\n\u003cli\u003eCompatible with OEM or Athena piston and gasket kits\u003c\/li\u003e\n\u003cli\u003eOEM replacement 44.5 mm standard-bore cylinder\u003c\/li\u003e\n\u003cli\u003eNickel Carbide (Nikasil) coating for extended wear resistance\u003c\/li\u003e\n\u003cli\u003eFactory-style porting for balanced torque and top-end power\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003e✓ What's Included:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAs specified in product title\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eShips fast from DuneGoonShop!\u003c\/p\u003e","brand":"WPS","offers":[{"title":"Default Title","offer_id":47248148955361,"sku":"68-4882","price":401.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/athena-cylinder-445-mm-kx65-20022024-7550289.jpg?v=1767316025"},{"product_id":"athena-valve-cover-gasket-kx250f-rm-z250-2004-2008","title":"Athena Valve Cover Gasket – KX250F \/ RM-Z250 (2004–2008)","description":"\u003cp\u003e\u003cstrong\u003e✓ Fits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2004-2008 Kawasaki \/ Suzuki KX250F\u003c\/li\u003e\n\u003cli\u003e2004-2008 Kawasaki \/ Suzuki RM-Z250\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003e✓ Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e(1) Athena valve cover gasket (KX250F \/ RM-Z250)\u003c\/li\u003e\n\u003cli\u003eOEM-style fit for fast, clean installs\u003c\/li\u003e\n\u003cli\u003eDurable materials for heat, oil, and pressure resistance\u003c\/li\u003e\n\u003cli\u003eIdeal for top-end services or routine gasket refreshes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003e✓ What's Included:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eComplete gasket set as specified\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eShips fast from DuneGoonShop!\u003c\/p\u003e","brand":"WPS","offers":[{"title":"Default Title","offer_id":47250785468641,"sku":"67-0456V","price":34.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/athena-valve-cover-gasket-kx250f-rm-z250-20042008-9046104.jpg?v=1763567552"},{"product_id":"athena-forged-piston-kit-46-96-mm-gasgas-mc85-ktm-85-sx-husqvarna-tc85","title":"Athena Forged Piston Kit 46.96 mm GasGas MC85 KTM 85 SX Husqvarna TC85 (2003-2025)","description":"\u003ch1 data-start=\"232\" data-end=\"331\"\u003eAthena Forged Piston Kit – GasGas MC85 \/ Husqvarna TC85 \/ KTM 85 SX (46.96 mm) (S4F04700001A)\u003c\/h1\u003e\n\u003cp data-start=\"333\" data-end=\"670\"\u003eBoost the performance and reliability of your 85cc two-stroke with the \u003cstrong data-start=\"404\" data-end=\"437\"\u003eAthena Forged Race Piston Kit\u003c\/strong\u003e, precision-engineered for durability and efficiency under extreme conditions. Designed for OEM cylinders, this piston delivers smoother operation, less friction, and more consistent power — tested on both dyno benches and the track.\u003c\/p\u003e\n\u003chr data-start=\"672\" data-end=\"675\"\u003e\n\u003ch3 data-start=\"677\" data-end=\"698\"\u003e✅ What’s Included\u003c\/h3\u003e\n\u003cul data-start=\"699\" data-end=\"823\"\u003e\n\u003cli data-start=\"699\" data-end=\"745\"\u003e\n\u003cp data-start=\"701\" data-end=\"745\"\u003eForged 46.96 mm \u003cstrong data-start=\"717\" data-end=\"743\"\u003eAthena piston (Type A)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"746\" data-end=\"788\"\u003e\n\u003cp data-start=\"748\" data-end=\"788\"\u003e\u003cstrong data-start=\"748\" data-end=\"764\"\u003ePiston rings\u003c\/strong\u003e (low-friction design)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"789\" data-end=\"806\"\u003e\n\u003cp data-start=\"791\" data-end=\"806\"\u003e\u003cstrong data-start=\"791\" data-end=\"804\"\u003eWrist pin\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"807\" data-end=\"823\"\u003e\n\u003cp data-start=\"809\" data-end=\"823\"\u003e\u003cstrong data-start=\"809\" data-end=\"821\"\u003eCirclips\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"825\" data-end=\"828\"\u003e\n\u003ch3 data-start=\"830\" data-end=\"844\"\u003e📦 Fitment\u003c\/h3\u003e\n\u003cul data-start=\"845\" data-end=\"982\"\u003e\n\u003cli data-start=\"845\" data-end=\"876\"\u003e\n\u003cp data-start=\"847\" data-end=\"876\"\u003e\u003cstrong data-start=\"847\" data-end=\"874\"\u003eGasGas MC85 (2021–2024)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"877\" data-end=\"911\"\u003e\n\u003cp data-start=\"879\" data-end=\"911\"\u003e\u003cstrong data-start=\"879\" data-end=\"909\"\u003eHusqvarna TC85 (2014–2025)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"912\" data-end=\"952\"\u003e\n\u003cp data-start=\"914\" data-end=\"952\"\u003e\u003cstrong data-start=\"914\" data-end=\"950\"\u003eKTM 85 SX (2003–2016, 2018–2021)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"953\" data-end=\"982\"\u003e\n\u003cp data-start=\"955\" data-end=\"982\"\u003e\u003cstrong data-start=\"955\" data-end=\"980\"\u003eKTM 85 XC (2008–2012)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"984\" data-end=\"1087\"\u003eFor use with \u003cstrong data-start=\"997\" data-end=\"1012\"\u003eOE cylinder\u003c\/strong\u003e applications.\u003cbr data-start=\"1026\" data-end=\"1029\"\u003eCompatible with both 17\/14 and 19\/16 wheel configurations.\u003c\/p\u003e\n\u003chr data-start=\"1089\" data-end=\"1092\"\u003e\n\u003ch3 data-start=\"1094\" data-end=\"1115\"\u003e🛡️ Warranty Info\u003c\/h3\u003e\n\u003cul data-start=\"1116\" data-end=\"1291\"\u003e\n\u003cli data-start=\"1116\" data-end=\"1186\"\u003e\n\u003cp data-start=\"1118\" data-end=\"1186\"\u003eManufacturer warranty against defects in materials and workmanship\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1187\" data-end=\"1258\"\u003e\n\u003cp data-start=\"1189\" data-end=\"1258\"\u003e\u003cstrong data-start=\"1189\" data-end=\"1206\"\u003eMade in Italy\u003c\/strong\u003e by Athena for OEM-level precision and reliability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1259\" data-end=\"1291\"\u003e\n\u003cp data-start=\"1261\" data-end=\"1291\"\u003eProp 65 compliant (California)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1293\" data-end=\"1296\"\u003e\n\u003ch3 data-start=\"1298\" data-end=\"1317\"\u003e🔑 Key Features\u003c\/h3\u003e\n\u003cul data-start=\"1318\" data-end=\"1778\"\u003e\n\u003cli data-start=\"1318\" data-end=\"1395\"\u003e\n\u003cp data-start=\"1320\" data-end=\"1395\"\u003e\u003cstrong data-start=\"1320\" data-end=\"1350\"\u003eForged 4032 aluminum alloy\u003c\/strong\u003e for maximum strength and reduced expansion\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1396\" data-end=\"1452\"\u003e\n\u003cp data-start=\"1398\" data-end=\"1452\"\u003e\u003cstrong data-start=\"1398\" data-end=\"1417\"\u003eHigh resistance\u003c\/strong\u003e to mechanical and thermal stress\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1453\" data-end=\"1554\"\u003e\n\u003cp data-start=\"1455\" data-end=\"1554\"\u003eDyno- and race-tested under progressive stress loads for reliability in extreme riding conditions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1555\" data-end=\"1623\"\u003e\n\u003cp data-start=\"1557\" data-end=\"1623\"\u003e\u003cstrong data-start=\"1557\" data-end=\"1579\"\u003eLow-friction rings\u003c\/strong\u003e reduce drag and improve engine efficiency\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1624\" data-end=\"1713\"\u003e\n\u003cp data-start=\"1626\" data-end=\"1713\"\u003e\u003cstrong data-start=\"1626\" data-end=\"1647\"\u003eDomed piston head\u003c\/strong\u003e maintains stock compression and optimized combustion efficiency\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1714\" data-end=\"1778\"\u003e\n\u003cp data-start=\"1716\" data-end=\"1778\"\u003eDesigned for OEM cylinder compatibility and race performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1780\" data-end=\"1783\"\u003e\n\u003ch3 data-start=\"1785\" data-end=\"1803\"\u003e💲 Price \u0026amp; SKU\u003c\/h3\u003e\n\u003cp data-start=\"1804\" data-end=\"1969\"\u003e\u003cstrong data-start=\"1804\" data-end=\"1814\"\u003ePrice:\u003c\/strong\u003e $142.95\u003cbr data-start=\"1822\" data-end=\"1825\"\u003e\u003cstrong data-start=\"1825\" data-end=\"1847\"\u003eSKU \/ Part Number:\u003c\/strong\u003e 0910-2533 | Athena S4F04700001A\u003cbr data-start=\"1881\" data-end=\"1884\"\u003e\u003cstrong data-start=\"1884\" data-end=\"1914\"\u003eEstimated Shipping Weight:\u003c\/strong\u003e 0.3 lbs\u003cbr data-start=\"1922\" data-end=\"1925\"\u003e\u003cstrong data-start=\"1925\" data-end=\"1943\"\u003eHandling Time:\u003c\/strong\u003e Ships Next Business Day\u003c\/p\u003e","brand":"Parts Unlimited","offers":[{"title":"Default Title","offer_id":47255251550433,"sku":"0910-2533","price":142.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/athena-forged-piston-kit-4696-mm-gasgas-mc85-ktm-85-sx-husqvarna-tc85-2641677.jpg?v=1763567445"},{"product_id":"athena-complete-gasket-kit-honda-trx250r-1986-1989","title":"Athena Complete Gasket Kit – Honda TRX250R 1986–1989","description":"\u003cp\u003e\u003cstrong\u003e✓ Fits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1986-1989 Honda TRX250R\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003e✓ Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAll O-rings, seals, and gaskets needed for assembly\u003c\/li\u003e\n\u003cli\u003eMeets or exceeds OEM specs\u003c\/li\u003e\n\u003cli\u003eMade from premium materials using computer-controlled manufacturing\u003c\/li\u003e\n\u003cli\u003eDesigned for long-lasting, leak-free performance\u003c\/li\u003e\n\u003cli\u003eEasy install—no trimming required\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003e✓ What's Included:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eComplete engine gasket set (top and bottom end)\u003c\/li\u003e\n\u003cli\u003eWhat’s Included Complete engine gasket set (top and bottom end) All O-rings, seals, and gaskets need\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eShips fast from DuneGoonShop!\u003c\/p\u003e","brand":"WPS","offers":[{"title":"Default Title","offer_id":47259501920481,"sku":"68-0820","price":72.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/athena-complete-gasket-kit-honda-trx250r-19861989-2060868.jpg?v=1763567445"},{"product_id":"athena-top-end-gasket-kit-honda-trx250r-1986-1989","title":"Athena Top End Gasket Kit – Honda TRX250R 1986–1989","description":"\u003cp\u003e\u003cstrong\u003e✓ Fits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1986-1989 Honda TRX250R\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003e✓ Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIncludes all gaskets and O-rings from the base gasket up\u003c\/li\u003e\n\u003cli\u003ePrecision-made in computer-controlled facilities\u003c\/li\u003e\n\u003cli\u003eMeets or exceeds OEM specifications\u003c\/li\u003e\n\u003cli\u003eBuilt from premium materials for durability and performance\u003c\/li\u003e\n\u003cli\u003ePerfect for 2-stroke rebuilds or maintenance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003e✓ What's Included:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eComplete top end gasket set\u003c\/li\u003e\n\u003cli\u003eWhat’s Included Complete top end gasket set Includes all gaskets and O-rings from the base gasket up\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eShips fast from DuneGoonShop!\u003c\/p\u003e","brand":"WPS","offers":[{"title":"Default Title","offer_id":47259508113633,"sku":"69-0820","price":49.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/athena-top-end-gasket-kit-honda-trx250r-19861989-3377592.jpg?v=1763566980"},{"product_id":"honda-crf250r-crf250rx-athena-85-mm-big-bore-cylinder-kit-13-7-1","title":"Athena 85mm Big Bore Cylinder Kit – Honda CRF250R \/ CRF250RX (2018-2024)","description":"\u003cp\u003e\u003cstrong\u003e✓ Fits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2018-2024 Honda CRF250R\u003c\/li\u003e\n\u003cli\u003e2018-2024 Honda CRF250RX\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003e✓ Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAthena Cylinder (85 mm bore) – Nikasil-plated aluminum for superior cooling and wear resistance\u003c\/li\u003e\n\u003cli\u003ePre-matched components for perfect clearance and reduced engine noise\u003c\/li\u003e\n\u003cli\u003eDirect bolt-on installation — no machining required\u003c\/li\u003e\n\u003cli\u003eFor closed-course competition use only (not legal for street or public-land use in California)\u003c\/li\u003e\n\u003cli\u003eGenuine Athena product with limited manufacturer warranty\u003c\/li\u003e\n\u003cli\u003eNikasil coating extends cylinder life and reduces friction\u003c\/li\u003e\n\u003cli\u003eIncreases displacement and compression for improved power delivery\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003e✓ What's Included:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVertex Forged Piston Kit (13.7 : 1) – rings, pin \u0026amp; circlips included\u003c\/li\u003e\n\u003cli\u003eComplete Top-End Gasket Set for precise sealing and easy installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eShips fast from DuneGoonShop!\u003c\/p\u003e","brand":"WPS","offers":[{"title":"Default Title","offer_id":47281469030625,"sku":"68-4718","price":1079.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/honda-crf250r-crf250rx-athena-85-mm-big-bore-cylinder-kit-137-1-2110789.jpg?v=1763566630"},{"product_id":"athena-p400485100077-53-mm-cylinder-kit-yamaha-yz85-2019-2024","title":"Athena P400485100077 53 mm Cylinder Kit – Yamaha YZ85 2019-2026","description":"\u003cp\u003e\u003cstrong\u003e✓ Fits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2019-2026 Yamaha YZ85\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003e✓ Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAthena 53 mm Cylinder Kit (P400485100077)\u003c\/li\u003e\n\u003cli\u003eInstallation-ready, direct bolt-on design\u003c\/li\u003e\n\u003cli\u003eNo additional hardware included (uses existing hardware)\u003c\/li\u003e\n\u003cli\u003eReady-to-install, direct bolt-on cylinder; no re-plating required\u003c\/li\u003e\n\u003cli\u003ePrecision-engineered for longevity and performance\u003c\/li\u003e\n\u003cli\u003eCompatible with 53 mm bore (specific displacement not listed, typical for YZ85 ~85 cc)\u003c\/li\u003e\n\u003cli\u003e4-cycle engine\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003e✓ What's Included:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCylinder as specified — piston kit sold separately unless noted\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eShips fast from DuneGoonShop!\u003c\/p\u003e","brand":"WPS","offers":[{"title":"Default Title","offer_id":47317058355425,"sku":"68-4959","price":1053.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/athena-p400485100077-53-mm-cylinder-kit-yamaha-yz85-2019-2026-2401245.jpg?v=1763566463"},{"product_id":"athena-p400485100038-53-mm-big-bore-race-kit-yamaha-yz85-2002-2018","title":"Athena P400485100038 53 mm Big Bore Race Kit – Yamaha YZ85 2002-2018","description":"\u003ch1 dir=\"ltr\" data-pm-slice=\"1 3 []\"\u003eAthena P400485100038 53 mm Big Bore Race Cylinder Kit – Yamaha YZ85 2002-2018\u003c\/h1\u003e\n\u003cp dir=\"ltr\"\u003eUnleash the potential of your Yamaha YZ85 with the Athena P400485100038 53 mm Big Bore Race Cylinder Kit, designed for 2002-2018 models. This 2-stroke kit boosts displacement to 105 cc with a high-performance aluminum cylinder and piston, ideal for off-road racing. \u003cstrong\u003eWe price-match reputable online stores—contact us to ensure you get the best deal!\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003e✅ What’s Included\u003c\/h2\u003e\n\u003cul class=\"tight\" data-tight=\"true\" dir=\"ltr\"\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\"\u003eAthena Big Bore Race Cylinder (P400485100038)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\"\u003eAluminum cylinder head with removable bronze dome\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\"\u003eHigh-performance, hard-anodized power valves (non-OEM compatible)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\"\u003eForged race piston kit (piston, rings, clips, pin)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\"\u003eAthena top-end gasket set with required seals and hardware\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\"\u003eInstallation-ready design (crankcase modifications required)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\"\u003eNo additional hardware included beyond kit\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 dir=\"ltr\"\u003e🔑 Key Features\u003c\/h2\u003e\n\u003cul class=\"tight\" data-tight=\"true\" dir=\"ltr\"\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\"\u003eAluminum cylinder with nickel-carbide coating for durability and heat resistance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\"\u003eIncreases displacement to 105 cc with 53.00 mm bore\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\"\u003eSpecially designed power valves for enhanced performance (replaces OEM valves)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\"\u003eForged race piston for superior strength and reduced weight\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\"\u003eMade in the U.S.A. with precision engineering\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\"\u003e2-stroke engine compatibility\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eWarning:\u003c\/strong\u003e Cancer and Reproductive Harm - www.P65Warnings.ca.gov\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Crankcase modifications are required for installation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 dir=\"ltr\"\u003e📦 Fitment (Highlights)\u003c\/h2\u003e\n\u003cul class=\"tight\" data-tight=\"true\" dir=\"ltr\"\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eYamaha:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"tight\" data-tight=\"true\" dir=\"ltr\"\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\"\u003e2002-2018 YZ85\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e Always verify fitment by year, make, model, and engine specifications before ordering. Crankcase modifications are necessary; consult a professional mechanic or Athena instructions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 dir=\"ltr\"\u003e💲 Price \u0026amp; SKU\u003c\/h2\u003e\n\u003cul class=\"tight\" data-tight=\"true\" dir=\"ltr\"\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eRetail Price:\u003c\/strong\u003e $976.95\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e 0931-0473 \/ P400485100038\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e We price-match reputable online stores—contact us for the best price!\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 4.33 lbs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e 6.33\" (H) × 13.07\" (L) × 8.26\" (W)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock. Ships next business day\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 dir=\"ltr\"\u003e🛡️ Warranty\u003c\/h2\u003e\n\u003cul class=\"tight\" data-tight=\"true\" dir=\"ltr\"\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\"\u003eContact Athena for warranty details (proof of purchase required)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 dir=\"ltr\"\u003e🔧 Installation Tips\u003c\/h2\u003e\n\u003cul class=\"tight\" data-tight=\"true\" dir=\"ltr\"\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\"\u003eCrankcase modifications required; seek professional assistance or follow Athena guidelines.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\"\u003eTorque cylinder head bolts to Yamaha specs (~15-20 ft-lbs, consult manual).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\"\u003eAdjust jetting (e.g., Mikuni carb) for increased displacement—start with richer mains (e.g., 32-35 pilot, 115-120 main).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\"\u003eVerify power valve clearance and timing after installation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Parts Unlimited","offers":[{"title":"Default Title","offer_id":47317060026593,"sku":"0931-0473","price":976.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/athena-p400485100038-53-mm-big-bore-race-kit-yamaha-yz85-2002-2018-1328817.jpg?v=1763567085"},{"product_id":"athena-p400485100093-47-5-mm-cylinder-kit-yamaha-yz85-2002-2018","title":"Athena P400485100093 47.5 mm Cylinder Kit – Yamaha YZ85 2002-2018","description":"\u003cp\u003e\u003cstrong\u003e✓ Fits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2002-2018 Yamaha YZ85\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003e✓ Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAthena Cylinder Kit (P400485100093)\u003c\/li\u003e\n\u003cli\u003e47.5 mm cylinder\u003c\/li\u003e\n\u003cli\u003eInstallation-ready design\u003c\/li\u003e\n\u003cli\u003eNo additional hardware included (uses existing components)\u003c\/li\u003e\n\u003cli\u003eHigh-quality cylinder kit for improved engine performance\u003c\/li\u003e\n\u003cli\u003e47.5 mm bore size for increased displacement\u003c\/li\u003e\n\u003cli\u003e2-stroke engine compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003e✓ What's Included:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCylinder as specified — piston kit sold separately unless noted\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eShips fast from DuneGoonShop!\u003c\/p\u003e","brand":"WPS","offers":[{"title":"Default Title","offer_id":47317150925025,"sku":"68-4941","price":629.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/athena-p400485100093-475-mm-cylinder-kit-yamaha-yz85-2002-2018-1794852.jpg?v=1763566461"},{"product_id":"athena-p400485100076-47-5-mm-cylinder-kit-yamaha-yz85-2019-2024","title":"Athena P400485100076 47.5 mm Cylinder Kit – Yamaha YZ85 2019-2024","description":"\u003cp\u003e\u003cstrong\u003e✓ Fits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2019-2024 Yamaha YZ85\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003e✓ Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAthena Cylinder Kit (P400485100076)\u003c\/li\u003e\n\u003cli\u003e47.5 mm cylinder\u003c\/li\u003e\n\u003cli\u003eInstallation-ready design\u003c\/li\u003e\n\u003cli\u003eNo additional hardware included (uses existing components)\u003c\/li\u003e\n\u003cli\u003eHigh-quality cylinder kit for enhanced engine performance\u003c\/li\u003e\n\u003cli\u003e47.5 mm bore size for increased displacement\u003c\/li\u003e\n\u003cli\u003e2-stroke engine compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003e✓ What's Included:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCylinder as specified — piston kit sold separately unless noted\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eShips fast from DuneGoonShop!\u003c\/p\u003e","brand":"WPS","offers":[{"title":"Default Title","offer_id":47317173240033,"sku":"68-4951","price":943.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/athena-p400485100076-475-mm-cylinder-kit-yamaha-yz85-2019-2024-4852956.png?v=1763569998"},{"product_id":"athena-s410485301076-47-5-mm-cylinder-only-yamaha-yz85-2019-2024","title":"Athena S410485301076 47.5 mm Cylinder Only – Yamaha YZ85 2019-2024","description":"\u003cp\u003e\u003cstrong\u003e✓ Fits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2019-2024 Yamaha YZ85\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003e✓ Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAthena Cylinder Only (S410485301076)\u003c\/li\u003e\n\u003cli\u003e47.5 mm nickel carbide coated cylinder\u003c\/li\u003e\n\u003cli\u003eInstallation-ready design\u003c\/li\u003e\n\u003cli\u003eNo additional hardware or components included (uses existing piston and gaskets)\u003c\/li\u003e\n\u003cli\u003eAvailable in standard bore (47.5 mm) and big bore sizes\u003c\/li\u003e\n\u003cli\u003eNickel carbide coated cylinder with factory-spec porting for improved durability\u003c\/li\u003e\n\u003cli\u003eSpecial hard anodized exhaust valves for enhanced performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003e✓ What's Included:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNote: Does not include piston kit or gasket set (available in full cylinder kits)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eShips fast from DuneGoonShop!\u003c\/p\u003e","brand":"WPS","offers":[{"title":"Default Title","offer_id":47317177336033,"sku":"68-4956","price":532.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/athena-s410485301076-475-mm-cylinder-only-yamaha-yz85-2019-2024-6140750.png?v=1763566895"},{"product_id":"athena-complete-gasket-kit-cr500r-1989-2001","title":"Athena Complete Gasket Kit – CR500R 1989–2001","description":"\u003cp\u003e\u003cstrong\u003e✓ Fits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1989-2001 Honda CR500R\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003e✓ Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2001 CR500R\u003c\/li\u003e\n\u003cli\u003e2000 CR500R\u003c\/li\u003e\n\u003cli\u003e1999 CR500R\u003c\/li\u003e\n\u003cli\u003e1998 CR500R\u003c\/li\u003e\n\u003cli\u003e1997 CR500R\u003c\/li\u003e\n\u003cli\u003e1996 CR500R\u003c\/li\u003e\n\u003cli\u003e1995 CR500R\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003e✓ What's Included:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eComplete gasket set as specified\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eShips fast from DuneGoonShop!\u003c\/p\u003e","brand":"WPS","offers":[{"title":"Default Title","offer_id":47351498277089,"sku":"68-0273","price":74.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/athena-complete-gasket-kit-cr500r-19892001-9336268.jpg?v=1763566981"},{"product_id":"athena-top-end-gasket-kit-cr500r-1989-2001","title":"Athena Top End Gasket Kit – CR500R 1989–2001","description":"\u003cp\u003e\u003cstrong\u003e✓ Fits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1989-2001 Honda CR500R\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003e✓ Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2001 CR500R\u003c\/li\u003e\n\u003cli\u003e2000 CR500R\u003c\/li\u003e\n\u003cli\u003e1999 CR500R\u003c\/li\u003e\n\u003cli\u003e1998 CR500R\u003c\/li\u003e\n\u003cli\u003e1997 CR500R\u003c\/li\u003e\n\u003cli\u003e1996 CR500R\u003c\/li\u003e\n\u003cli\u003e1995 CR500R\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003e✓ What's Included:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eComplete top-end gasket set\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eShips fast from DuneGoonShop!\u003c\/p\u003e","brand":"WPS","offers":[{"title":"Default Title","offer_id":47351505354977,"sku":"69-0273","price":48.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/athena-top-end-gasket-kit-cr500r-19892001-8549141.jpg?v=1763567280"},{"product_id":"athena-yfz450-98-mm-big-bore-cylinder-kit-478-cc-2004-2009","title":"Athena YFZ450 98 mm Big Bore Cylinder Kit – 478 cc (2004–2009)","description":"\u003ch1 data-start=\"302\" data-end=\"386\"\u003eAthena Big Bore Race Cylinder Kit – 98 mm (478 cc) – Yamaha YFZ450 (2004–2009)\u003c\/h1\u003e\n\u003cp data-start=\"388\" data-end=\"691\"\u003eTake your YFZ450’s performance to the next level with the \u003cstrong data-start=\"446\" data-end=\"489\"\u003eAthena 98 mm Big Bore Race Cylinder Kit\u003c\/strong\u003e. Featuring race-engineered components and precision nickel-carbide coating, this kit delivers more displacement, stronger power throughout the RPM range, and unmatched durability for aggressive riding.\u003c\/p\u003e\n\u003chr data-start=\"693\" data-end=\"696\"\u003e\n\u003ch3 data-start=\"698\" data-end=\"721\"\u003e✅ What’s Included\u003c\/h3\u003e\n\u003cul data-start=\"722\" data-end=\"966\"\u003e\n\u003cli data-start=\"722\" data-end=\"767\"\u003e\n\u003cp data-start=\"724\" data-end=\"767\"\u003e98 mm (478 cc) Big Bore Aluminum Cylinder\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"768\" data-end=\"808\"\u003e\n\u003cp data-start=\"770\" data-end=\"808\"\u003eNickel-Carbide Cylinder Bore Coating\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"809\" data-end=\"844\"\u003e\n\u003cp data-start=\"811\" data-end=\"844\"\u003eForged Molybdenum-Coated Piston\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"845\" data-end=\"861\"\u003e\n\u003cp data-start=\"847\" data-end=\"861\"\u003ePiston Rings\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"862\" data-end=\"886\"\u003e\n\u003cp data-start=\"864\" data-end=\"886\"\u003eWrist Pin \u0026amp; Circlips\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"887\" data-end=\"936\"\u003e\n\u003cp data-start=\"889\" data-end=\"936\"\u003eHigh-Performance Power Valves (hard anodized)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"937\" data-end=\"966\"\u003e\n\u003cp data-start=\"939\" data-end=\"966\"\u003eInstallation Instructions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"968\" data-end=\"971\"\u003e\n\u003ch3 data-start=\"973\" data-end=\"1005\"\u003e⚙️ Key Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul data-start=\"1006\" data-end=\"1532\"\u003e\n\u003cli data-start=\"1006\" data-end=\"1104\"\u003e\n\u003cp data-start=\"1008\" data-end=\"1104\"\u003e\u003cstrong data-start=\"1008\" data-end=\"1031\"\u003eMore Power \u0026amp; Torque\u003c\/strong\u003e – Boosts displacement to 478 cc for instant low-end and midrange gains\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1105\" data-end=\"1200\"\u003e\n\u003cp data-start=\"1107\" data-end=\"1200\"\u003e\u003cstrong data-start=\"1107\" data-end=\"1129\"\u003eRace-Spec Cylinder\u003c\/strong\u003e – Nickel-carbide coating ensures reliability under high heat and RPM\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1201\" data-end=\"1286\"\u003e\n\u003cp data-start=\"1203\" data-end=\"1286\"\u003e\u003cstrong data-start=\"1203\" data-end=\"1230\"\u003ePrecision Water Jackets\u003c\/strong\u003e – Improved cooling capacity for sustained hard riding\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1287\" data-end=\"1372\"\u003e\n\u003cp data-start=\"1289\" data-end=\"1372\"\u003e\u003cstrong data-start=\"1289\" data-end=\"1313\"\u003eForged Piston Design\u003c\/strong\u003e – Lightweight yet strong for maximized throttle response\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1373\" data-end=\"1458\"\u003e\n\u003cp data-start=\"1375\" data-end=\"1458\"\u003e\u003cstrong data-start=\"1375\" data-end=\"1399\"\u003eEasy Bolt-On Upgrade\u003c\/strong\u003e – No machining required; fits directly to OEM bottom end\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1459\" data-end=\"1532\"\u003e\n\u003cp data-start=\"1461\" data-end=\"1532\"\u003e\u003cstrong data-start=\"1461\" data-end=\"1496\"\u003eCompression Ratio 12.0–12.4 : 1\u003c\/strong\u003e – Optimized for pump or race fuel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1534\" data-end=\"1565\"\u003e\u003cem data-start=\"1534\" data-end=\"1565\"\u003e(Cylinder head not included.)\u003c\/em\u003e\u003c\/p\u003e\n\u003chr data-start=\"1567\" data-end=\"1570\"\u003e\n\u003ch3 data-start=\"1572\" data-end=\"1594\"\u003e📦 Compatibility\u003c\/h3\u003e\n\u003cul data-start=\"1595\" data-end=\"1630\"\u003e\n\u003cli data-start=\"1595\" data-end=\"1630\"\u003e\n\u003cp data-start=\"1597\" data-end=\"1630\"\u003e\u003cstrong data-start=\"1597\" data-end=\"1628\"\u003eYamaha YFZ450 (2004 – 2009)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1632\" data-end=\"1635\"\u003e\n\u003ch3 data-start=\"1637\" data-end=\"1660\"\u003e🛡️ Warranty Info\u003c\/h3\u003e\n\u003cp data-start=\"1661\" data-end=\"1777\"\u003e1-year manufacturer warranty against defects.\u003cbr data-start=\"1706\" data-end=\"1709\"\u003eProfessional installation and proper break-in required for coverage.\u003c\/p\u003e\n\u003chr data-start=\"1779\" data-end=\"1782\"\u003e\n\u003cp data-start=\"1784\" data-end=\"1890\"\u003e💲 \u003cstrong data-start=\"1787\" data-end=\"1797\"\u003ePrice:\u003c\/strong\u003e $820.95 (Suggested Retail)\u003cbr data-start=\"1824\" data-end=\"1827\"\u003e🔢 \u003cstrong data-start=\"1830\" data-end=\"1838\"\u003eSKU:\u003c\/strong\u003e 0931-0022 \/ P400485100016\u003cbr data-start=\"1864\" data-end=\"1867\"\u003e🏷️ \u003cstrong data-start=\"1871\" data-end=\"1881\"\u003eBrand:\u003c\/strong\u003e Athena\u003c\/p\u003e","brand":"Parts Unlimited","offers":[{"title":"Default Title","offer_id":47388754903265,"sku":"0931-0022","price":820.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/athena-yfz450-98-mm-big-bore-cylinder-kit-478-cc-20042009-7540881.png?v=1764105066"},{"product_id":"athena-94-mm-big-bore-kit-dr-z400-kfx400-dvx400-2003-2017","title":"Athena 94 mm Big Bore Kit DR-Z400 \/ KFX400 \/ DVX400 (2003 – 2017)","description":"\u003cp\u003e\u003cstrong\u003e✓ Fits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2003-2017 Suzuki \/ Kawasaki \/ Arctic Cat DR-Z400\u003c\/li\u003e\n\u003cli\u003e2003-2017 Suzuki \/ Kawasaki \/ Arctic Cat KFX400\u003c\/li\u003e\n\u003cli\u003e2003-2017 Suzuki \/ Kawasaki \/ Arctic Cat DVX400\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003e✓ Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e94 mm Big Bore Cylinder (12.3 : 1 compression)\u003c\/li\u003e\n\u003cli\u003eReady to install – no case machining required\u003c\/li\u003e\n\u003cli\u003eIncreases displacement and compression for stronger power delivery\u003c\/li\u003e\n\u003cli\u003eNickel-silicon-carbide plating for extended service life\u003c\/li\u003e\n\u003cli\u003eForged piston matched to the cylinder for quiet, efficient operation\u003c\/li\u003e\n\u003cli\u003eFactory-style fit and appearance\u003c\/li\u003e\n\u003cli\u003eMade in Italy by Athena\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003e✓ What's Included:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eForged Piston Kit (piston, rings, pin \u0026amp; circlips)\u003c\/li\u003e\n\u003cli\u003eTop-End Gasket Set\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eShips fast from DuneGoonShop!\u003c\/p\u003e","brand":"WPS","offers":[{"title":"Default Title","offer_id":47408006398177,"sku":"68-4410","price":1034.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/athena-94-mm-big-bore-kit-dr-z400-kfx400-dvx400-2003-2017-1991321.jpg?v=1763566293"},{"product_id":"athena-complete-gasket-kit-lt-z400-kfx400-2003-2014","title":"Athena Complete Gasket Kit LT-Z400 \/ KFX400 (2003–2014)","description":"\u003cp\u003e\u003cstrong\u003e✓ Fits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2003-2014 Suzuki \/ Kawasaki LT-Z400\u003c\/li\u003e\n\u003cli\u003e2003-2014 Suzuki \/ Kawasaki KFX400\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003e✓ Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAll O-rings and seals for full engine rebuild\u003c\/li\u003e\n\u003cli\u003eMade from premium materials for oil, coolant, and pressure resistance\u003c\/li\u003e\n\u003cli\u003eMeets or exceeds OEM specifications\u003c\/li\u003e\n\u003cli\u003eEngineered for superior durability and heat resistance\u003c\/li\u003e\n\u003cli\u003eIncludes all necessary gaskets, O-rings, and seals\u003c\/li\u003e\n\u003cli\u003eDesigned and manufactured in Italy by Athena\u003c\/li\u003e\n\u003cli\u003eIdeal companion for Athena or Cylinder Works big bore and rebuild kits\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003e✓ What's Included:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eComplete top and bottom-end gasket set\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eShips fast from DuneGoonShop!\u003c\/p\u003e","brand":"WPS","offers":[{"title":"Default Title","offer_id":47408008134881,"sku":"68-0903","price":245.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/athena-complete-gasket-kit-lt-z400-kfx400-20032014-6768722.jpg?v=1763566226"},{"product_id":"athena-big-bore-race-cylinder-kit-kawasaki-kx65-2002-2025","title":"Athena Big Bore Race Cylinder Kit – Kawasaki KX65 (2002–2025)","description":"\u003ch1 data-start=\"233\" data-end=\"324\"\u003eAthena Big Bore Race Cylinder Kit – Kawasaki KX65 (2002–2025) (P400250100007 \/ 0931-0107)\u003c\/h1\u003e\n\u003ch2 data-start=\"326\" data-end=\"342\"\u003eDescription\u003c\/h2\u003e\n\u003cp data-start=\"343\" data-end=\"626\"\u003eUpgrade your \u003cstrong data-start=\"356\" data-end=\"385\"\u003eKawasaki KX65 (2002–2025)\u003c\/strong\u003e to true race performance with the \u003cstrong data-start=\"420\" data-end=\"478\"\u003eAthena 80cc Big Bore Race Cylinder Kit (P400250100007)\u003c\/strong\u003e. Designed for riders looking for more power, torque, and throttle response, this kit transforms your 65cc mini into a championship-level machine.\u003c\/p\u003e\n\u003cp data-start=\"628\" data-end=\"998\"\u003eCrafted from lightweight aluminum with a \u003cstrong data-start=\"669\" data-end=\"699\"\u003enickel-carbide coated bore\u003c\/strong\u003e, this cylinder kit delivers increased displacement, improved durability, and precise heat transfer for maximum reliability under race conditions. Athena’s high-performance cylinder head and power valves are engineered for top-end gains and midrange torque — perfect for serious racers and tuners.\u003c\/p\u003e\n\u003ch2 data-start=\"1000\" data-end=\"1020\"\u003eWhat’s Included\u003c\/h2\u003e\n\u003cp data-start=\"1021\" data-end=\"1326\"\u003e✅ 50.00 mm aluminum cylinder (nickel-carbide coating)\u003cbr data-start=\"1074\" data-end=\"1077\"\u003e✅ Aluminum cylinder head with removable bronze dome\u003cbr data-start=\"1128\" data-end=\"1131\"\u003e✅ High-performance anodized power valves (not compatible with OEM valves)\u003cbr data-start=\"1204\" data-end=\"1207\"\u003e✅ Athena top-end gasket kit with seals and hardware\u003cbr data-start=\"1258\" data-end=\"1261\"\u003e✅ Cast lite flat-top piston kit (piston, rings, clips, and pin)\u003c\/p\u003e\n\u003ch2 data-start=\"1328\" data-end=\"1340\"\u003eFitment\u003c\/h2\u003e\n\u003cp data-start=\"1341\" data-end=\"1351\"\u003e📦 Fits:\u003c\/p\u003e\n\u003cul data-start=\"1352\" data-end=\"1379\"\u003e\n\u003cli data-start=\"1352\" data-end=\"1379\"\u003e\n\u003cp data-start=\"1354\" data-end=\"1379\"\u003e2002–2025 Kawasaki KX65\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-start=\"1381\" data-end=\"1398\"\u003eKey Features\u003c\/h2\u003e\n\u003cul data-start=\"1399\" data-end=\"1775\"\u003e\n\u003cli data-start=\"1399\" data-end=\"1461\"\u003e\n\u003cp data-start=\"1401\" data-end=\"1461\"\u003eIncreases displacement from 65cc to approximately \u003cstrong data-start=\"1451\" data-end=\"1459\"\u003e80cc\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1462\" data-end=\"1528\"\u003e\n\u003cp data-start=\"1464\" data-end=\"1528\"\u003eNickel-carbide bore coating for reduced friction and long life\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1529\" data-end=\"1588\"\u003e\n\u003cp data-start=\"1531\" data-end=\"1588\"\u003eRace-engineered power valve system (not OEM compatible)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1589\" data-end=\"1646\"\u003e\n\u003cp data-start=\"1591\" data-end=\"1646\"\u003eIncludes all necessary gaskets, seals, and piston kit\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1647\" data-end=\"1723\"\u003e\n\u003cp data-start=\"1649\" data-end=\"1723\"\u003ePrecision-machined aluminum head with bronze dome for optimal combustion\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1724\" data-end=\"1775\"\u003e\n\u003cp data-start=\"1726\" data-end=\"1775\"\u003eDesigned for racing and high-performance builds\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-start=\"1777\" data-end=\"1795\"\u003eWarranty Info\u003c\/h2\u003e\n\u003cp data-start=\"1796\" data-end=\"1902\"\u003eManufactured by \u003cstrong data-start=\"1812\" data-end=\"1837\"\u003eAthena S.p.A. (Italy)\u003c\/strong\u003e.\u003cbr data-start=\"1838\" data-end=\"1841\"\u003eWarranty and tech support provided directly through Athena.\u003c\/p\u003e","brand":"Parts Unlimited","offers":[{"title":"Default Title","offer_id":47413020721377,"sku":"0931-0107","price":932.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/athena-big-bore-race-cylinder-kit-kawasaki-kx65-20022025-9169064.jpg?v=1763566226"},{"product_id":"athena-80cc-big-bore-cylinder-kit-ktm-65-sx-xc-2001-2008","title":"Athena 80cc Big Bore Cylinder Kit – KTM 65 SX \/ XC (2001–2008)","description":"\u003ch1 data-start=\"205\" data-end=\"300\"\u003eAthena Big Bore Race Cylinder Kit – KTM 65 SX \/ 65 XC (2001–2008) (P400270100002 \/ 0931-0245)\u003c\/h1\u003e\n\u003ch2 data-start=\"302\" data-end=\"318\"\u003eDescription\u003c\/h2\u003e\n\u003cp data-start=\"319\" data-end=\"632\"\u003eTake your KTM 65 SX or 65 XC to the next level of race performance with the \u003cstrong data-start=\"395\" data-end=\"453\"\u003eAthena 80cc Big Bore Race Cylinder Kit (P400270100002)\u003c\/strong\u003e. Designed for serious mini racers, this kit boosts power, torque, and throttle response across the entire RPM range while maintaining reliable cooling and long-term durability.\u003c\/p\u003e\n\u003cp data-start=\"634\" data-end=\"963\"\u003eFeaturing an \u003cstrong data-start=\"647\" data-end=\"698\"\u003ealuminum cylinder with a nickel-carbide coating\u003c\/strong\u003e, this kit ensures superior wear resistance and heat transfer. The \u003cstrong data-start=\"765\" data-end=\"799\"\u003ehigh-performance cylinder head\u003c\/strong\u003e with removable bronze dome and precision power valves (not OEM compatible) deliver explosive top-end power ideal for motocross, supermini, or off-road competition.\u003c\/p\u003e\n\u003ch2 data-start=\"965\" data-end=\"985\"\u003eWhat’s Included\u003c\/h2\u003e\n\u003cp data-start=\"986\" data-end=\"1293\"\u003e✅ 50.00 mm aluminum big bore cylinder (nickel-carbide coating)\u003cbr data-start=\"1048\" data-end=\"1051\"\u003e✅ Aluminum cylinder head with removable bronze dome\u003cbr data-start=\"1102\" data-end=\"1105\"\u003e✅ High-performance anodized power valves (cannot use OEM)\u003cbr data-start=\"1162\" data-end=\"1165\"\u003e✅ Athena top-end gasket set with required seals and hardware\u003cbr data-start=\"1225\" data-end=\"1228\"\u003e✅ Cast lite flat-top piston kit (piston, rings, clips, and pin)\u003c\/p\u003e\n\u003ch2 data-start=\"1295\" data-end=\"1307\"\u003eFitment\u003c\/h2\u003e\n\u003cp data-start=\"1308\" data-end=\"1318\"\u003e📦 Fits:\u003c\/p\u003e\n\u003cul data-start=\"1319\" data-end=\"1366\"\u003e\n\u003cli data-start=\"1319\" data-end=\"1342\"\u003e\n\u003cp data-start=\"1321\" data-end=\"1342\"\u003e2001–2008 KTM 65 SX\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1343\" data-end=\"1366\"\u003e\n\u003cp data-start=\"1345\" data-end=\"1366\"\u003e2002–2008 KTM 65 XC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1368\" data-end=\"1488\"\u003e(Converts stock 65cc motor to approximately 80cc displacement. Compatible with OEM crankcase and bottom-end components.)\u003c\/p\u003e\n\u003ch2 data-start=\"1490\" data-end=\"1507\"\u003eKey Features\u003c\/h2\u003e\n\u003cul data-start=\"1508\" data-end=\"1832\"\u003e\n\u003cli data-start=\"1508\" data-end=\"1570\"\u003e\n\u003cp data-start=\"1510\" data-end=\"1570\"\u003eIncreases displacement from 65cc to approximately \u003cstrong data-start=\"1560\" data-end=\"1568\"\u003e80cc\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1571\" data-end=\"1642\"\u003e\n\u003cp data-start=\"1573\" data-end=\"1642\"\u003eRace-spec power valve and cylinder head system (non-OEM compatible)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1643\" data-end=\"1715\"\u003e\n\u003cp data-start=\"1645\" data-end=\"1715\"\u003eNickel-carbide coated bore for maximum reliability and heat transfer\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1716\" data-end=\"1775\"\u003e\n\u003cp data-start=\"1718\" data-end=\"1775\"\u003eIncludes piston, gaskets, seals, and precision hardware\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1776\" data-end=\"1832\"\u003e\n\u003cp data-start=\"1778\" data-end=\"1832\"\u003eDesigned for competition and high-performance builds\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-start=\"1834\" data-end=\"1852\"\u003eWarranty Info\u003c\/h2\u003e\n\u003cp data-start=\"1853\" data-end=\"1964\"\u003eManufactured by \u003cstrong data-start=\"1869\" data-end=\"1894\"\u003eAthena S.p.A. (Italy)\u003c\/strong\u003e.\u003cbr data-start=\"1895\" data-end=\"1898\"\u003eWarranty and technical support provided directly through Athena.\u003c\/p\u003e\n\u003ch2 data-start=\"1966\" data-end=\"1982\"\u003ePrice \u0026amp; SKU\u003c\/h2\u003e\n\u003cp data-start=\"1983\" data-end=\"2209\"\u003e💲 \u003cstrong data-start=\"1986\" data-end=\"2003\"\u003eRetail Price:\u003c\/strong\u003e $872.95\u003cbr data-start=\"2011\" data-end=\"2014\"\u003e\u003cstrong data-start=\"2014\" data-end=\"2022\"\u003eSKU:\u003c\/strong\u003e 0931-0245 \/ P400270100002\u003cbr data-start=\"2048\" data-end=\"2051\"\u003e\u003cstrong data-start=\"2051\" data-end=\"2081\"\u003eEstimated Shipping Weight:\u003c\/strong\u003e 3.28 lb\u003cbr data-start=\"2089\" data-end=\"2092\"\u003e\u003cstrong data-start=\"2092\" data-end=\"2109\"\u003eAvailability:\u003c\/strong\u003e Ships Next Day\u003cbr data-start=\"2148\" data-end=\"2151\"\u003e\u003c\/p\u003e","brand":"Parts Unlimited","offers":[{"title":"Default Title","offer_id":47413698003169,"sku":"0931-0245","price":872.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/athena-80cc-big-bore-cylinder-kit-ktm-65-sx-xc-20012008-7071821.jpg?v=1764018176"},{"product_id":"kawasaki-kfx450r-2008-2014-96mm-stock-bore-race-cylinder-kit-athena","title":"Kawasaki KFX450R (2008–2014) 96mm Stock Bore Race Cylinder Kit – Athena","description":"\u003cp dir=\"auto\"\u003e\u003cstrong\u003eKawasaki KFX450R (2008–2014) 96mm Stock Bore Race Cylinder Kit – Athena\u003c\/strong\u003e \u003cstrong\u003eDescription\u003c\/strong\u003e \u003cstrong\u003eFactory Works-level domination\u003c\/strong\u003e — the \u003cstrong\u003eAthena P400250100009 96.00mm Stock Bore Race Cylinder Kit\u003c\/strong\u003e is a \u003cstrong\u003erace-spec, drop-in upgrade\u003c\/strong\u003e for \u003cstrong\u003e2008–2014 Kawasaki KFX450R\u003c\/strong\u003e. Featuring a \u003cstrong\u003ehard-anodized aluminum cylinder\u003c\/strong\u003e with \u003cstrong\u003enickel-carbide coating\u003c\/strong\u003e, \u003cstrong\u003eported to Factory Works specs\u003c\/strong\u003e, \u003cstrong\u003eforged 13.2:1 domed piston\u003c\/strong\u003e, and \u003cstrong\u003ehigh-flow power valves\u003c\/strong\u003e (non-OEM), this kit delivers \u003cstrong\u003eexplosive top-end power, superior heat rejection, and championship durability\u003c\/strong\u003e. \u003cem\u003eCylinder head not included.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eWhat’s Included\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eHard-Anodized Aluminum Cylinder (nickel-carbide coated, Factory Works porting)\u003c\/li\u003e\n\u003cli\u003eForged Domed Piston Kit (13.2:1 compression, rings, pin, clips)\u003c\/li\u003e\n\u003cli\u003eHigh-Performance Power Valves (hard-anodized, non-OEM)\u003c\/li\u003e\n\u003cli\u003eAthena Top-End Gasket Set (head, base, seals, hardware)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e96.00 mm stock bore\u003c\/strong\u003e — direct OEM fit, no boring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNickel-carbide coating\u003c\/strong\u003e — extreme wear resistance, low friction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory Works porting\u003c\/strong\u003e — max airflow, race-tuned performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e13.2:1 forged piston\u003c\/strong\u003e — high-compression power gains\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHard-anodized power valves\u003c\/strong\u003e — faster response, longer life\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e Fits the following models and years:\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e2008–2014 Kawasaki KFX450R\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eWarranty Info\u003c\/strong\u003e Backed by Athena limited warranty. Professional installation recommended. WARNING: Cancer and Reproductive Harm - \u003ca href=\"http:\/\/www.P65Warnings.ca.gov\" rel=\"noopener noreferrer nofollow\" target=\"_blank\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003ePrice \u0026amp; SKU\u003c\/strong\u003e Retail Price: $772.95 SKU: 0931-0253 \/ P400250100009 Estimated Shipping Weight: 4.77 lbs Handling Time: Ships next business day\u003c\/p\u003e","brand":"Parts Unlimited","offers":[{"title":"Default Title","offer_id":47445584216289,"sku":"0931-0253","price":772.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/kawasaki-kfx450r-20082014-96mm-stock-bore-race-cylinder-kit-athena-9459340.png?v=1763565977"},{"product_id":"yamaha-yz450f-2014-2017-97mm-stock-bore-race-cylinder-kit-athena-p400485100053","title":"Yamaha YZ450F (2014–2017) 97mm Stock Bore Race Cylinder Kit – Athena P400485100053","description":"\u003cp dir=\"auto\"\u003e\u003cstrong\u003eYamaha YZ450F 2014–2017 97mm Stock Bore Factory Works Race Cylinder Kit – Athena\u003c\/strong\u003e \u003cstrong\u003eDescription\u003c\/strong\u003e \u003cstrong\u003eFactory-level power, no machining\u003c\/strong\u003e — the \u003cstrong\u003eAthena P400485100053\u003c\/strong\u003e is a \u003cstrong\u003ecomplete stock-bore race cylinder kit\u003c\/strong\u003e for \u003cstrong\u003e2014–2017 Yamaha YZ450F\u003c\/strong\u003e. \u003cstrong\u003e97mm nickel-carbide plated aluminum cylinder\u003c\/strong\u003e (Factory Works porting), \u003cstrong\u003eforged 12.4:1 domed piston\u003c\/strong\u003e, \u003cstrong\u003ehard-anodized power valves\u003c\/strong\u003e, and \u003cstrong\u003efull top-end gasket set\u003c\/strong\u003e — \u003cstrong\u003edrop-in +20 hp potential\u003c\/strong\u003e for MX\/supercross builds. \u003cem\u003eCylinder head not included.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eWhat’s Included\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e97.00 mm Aluminum Cylinder\u003c\/strong\u003e – nickel-carbide coated, Factory Works porting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForged Domed Piston Kit\u003c\/strong\u003e – 12.4:1 compression, rings, pin, clips\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHard-Anodized Power Valves\u003c\/strong\u003e – high-flow, non-OEM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAthena Top-End Gasket Set\u003c\/strong\u003e – head\/base gaskets, seals, hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e97 mm stock bore\u003c\/strong\u003e — direct OEM replacement, no boring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNickel-carbide plating\u003c\/strong\u003e — extreme durability, low friction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory Works porting\u003c\/strong\u003e — max airflow, race-tuned performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12.4:1 forged piston\u003c\/strong\u003e — aggressive mid-top power\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHard-anodized power valves\u003c\/strong\u003e — faster response, longer life\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in Italy\u003c\/strong\u003e — pro-grade precision\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003cstrong\u003e2014 Yamaha YZ450F\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e2015 Yamaha YZ450F\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e2016 Yamaha YZ450F\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e2017 Yamaha YZ450F\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eWarranty Info\u003c\/strong\u003e Backed by Athena limited warranty. Professional installation recommended. WARNING: Cancer and Reproductive Harm - \u003ca href=\"http:\/\/www.P65Warnings.ca.gov\" rel=\"noopener noreferrer nofollow\" target=\"_blank\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003ePrice \u0026amp; SKU\u003c\/strong\u003e Retail Price: \u003cstrong\u003e$772.80\u003c\/strong\u003e SKU: \u003cstrong\u003e0931-0958 \/ P400485100053\u003c\/strong\u003e Weight: \u003cstrong\u003e4.66 lbs\u003c\/strong\u003e Availability: \u003cstrong\u003eIn Stock\u003c\/strong\u003e\u003c\/p\u003e","brand":"Parts Unlimited","offers":[{"title":"Default Title","offer_id":47472779559137,"sku":"0931-0958","price":772.8,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/yamaha-yz450f-20142017-97mm-stock-bore-race-cylinder-kit-athena-p400485100053-9471259.png?v=1763565982"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/collections\/download_ad1813bc-de19-4ffc-9689-01e816bdcc92.png?v=1768029782","url":"https:\/\/dunegoonshop.com\/collections\/athena.oembed?page=10","provider":"Dune Goons","version":"1.0","type":"link"}