{"product_id":"wiseco-gp-series-piston-kit-honda-cr125r-56mm-big-bore-2003-2stroke","title":"Wiseco GP Series Piston Kit with Gaskets - Honda CR125R (2003) - 56.00mm Bore (+2.00mm BIG BORE) - 134cc - Nikasil - 2-Stroke Race-Spec","description":"\u003ch2\u003eWiseco GP Series Piston Kit with Gaskets - Honda CR125R (2003) - BIG BORE\u003c\/h2\u003e\n\n\u003cp\u003eThe Wiseco GP Series represents the pinnacle of 2-stroke piston technology for the Honda CR125R. This is a \u003cstrong\u003eBIG BORE kit (+2.00mm)\u003c\/strong\u003e that increases displacement from 125cc to 134cc - giving your CR125R serious power gains with GP Series race-spec features!\u003c\/p\u003e\n\n\u003ch3\u003e🔥 BIG BORE: 125cc → 134cc (+7.2%!)\u003c\/h3\u003e\n\n\u003cp\u003eThis +2.00mm big bore kit provides a 9cc displacement increase - that's 7.2% more displacement for noticeably improved power throughout the rev range!\u003c\/p\u003e\n\n\u003ch3\u003e⚠️ Important: Installation Requirements\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSleeving or Replating Required\u003c\/strong\u003e - Cylinder must be bored to 56.00mm\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eFits Nikasil bore cylinder only\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003ePiston does not have an intake window\u003c\/li\u003e\n\u003cli\u003ePinned on centerline\u003c\/li\u003e\n\u003cli\u003eLonger skirt than stock (improved stability)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e🏁 GP Series Race-Spec Features\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectra Coating\u003c\/strong\u003e - Crown, ring groove(s), and pin bores coated for maximum wear resistance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArmorGlide® Skirt Coating\u003c\/strong\u003e - Protection from micro-welding, galling, and detonation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtra Lightening Operations\u003c\/strong\u003e - Enhanced throttle response\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in USA\u003c\/strong\u003e - Engineered, forged, and machined in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKit Includes\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiseco GP Series Piston\u003c\/strong\u003e - Premium 4032 aluminum alloy with Electra + ArmorGlide®\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRing Set\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWrist Pin\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCirclips\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWrist Pin Bearing\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTop End Gasket Set\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eGP Series design for professional-level racing performance\u003c\/li\u003e\n\u003cli\u003e4032 aluminum alloy construction - optimized for 2-stroke applications\u003c\/li\u003e\n\u003cli\u003eDual coating system - Electra + ArmorGlide® for ultimate protection\u003c\/li\u003e\n\u003cli\u003eDesigned for endurance and sustained RPM riding\u003c\/li\u003e\n\u003cli\u003eComplete top-end gasket kit included\u003c\/li\u003e\n\u003cli\u003eWrist pin bearing included - everything for a complete rebuild\u003c\/li\u003e\n\u003cli\u003eLonger skirt design for improved stability\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDisplacement Increase\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eStock Bore: 54.00mm = 125cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBig Bore: 56.00mm = 134cc\u003c\/strong\u003e (+7.2% displacement!)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eImportant Notes\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eSleeving or replating required - cylinder must be bored to 56.00mm\u003c\/li\u003e\n\u003cli\u003eFits Nikasil bore cylinder only\u003c\/li\u003e\n\u003cli\u003eNo intake window design\u003c\/li\u003e\n\u003cli\u003eCenterline pin location\u003c\/li\u003e\n\u003cli\u003eWiseco ring types are not interchangeable\u003c\/li\u003e\n\u003cli\u003eWiseco pistons can be fitted only with Wiseco rings\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePiston Specifications\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eBore Size: 56.00 mm (+2.00mm Big Bore)\u003c\/li\u003e\n\u003cli\u003ePiston Diameter: 55.94 mm\u003c\/li\u003e\n\u003cli\u003eStroke Length: 54.50 mm\u003c\/li\u003e\n\u003cli\u003eMaterial: 4032 Aluminum Alloy\u003c\/li\u003e\n\u003cli\u003eSkirt Coating: ArmorGlide® + Electra\u003c\/li\u003e\n\u003cli\u003eStyle: GP Series\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eEngine Specifications\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eDisplacement: 134cc (up from 125cc)\u003c\/li\u003e\n\u003cli\u003eEngine Type: 2-Stroke\u003c\/li\u003e\n\u003cli\u003eWeight: 0.75 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHonda CR125R\u003c\/strong\u003e: 2003\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eYear-Specific Fitment\u003c\/h3\u003e\n\n\u003cp\u003eThis kit is specifically designed for the 2003 Honda CR125R with Nikasil bore cylinder. Honda changed piston specifications between model years - verify your cylinder type before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Choose the Big Bore?\u003c\/h3\u003e\n\n\u003cp\u003eThe +2.00mm big bore conversion combined with GP Series race technology gives your CR125R the ultimate competitive advantage for open class racing!\u003c\/p\u003e","brand":"Parts Unlimited","offers":[{"title":"Default Title","offer_id":47694524154081,"sku":"0903-0733","price":264.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/wiseco-gp-series-piston-kit-with-gaskets-honda-cr125r-2003-5600mm-bore-200mm-big-bore-134cc-nikasil-2-stroke-race-spec-6423875.png?v=1765838886","url":"https:\/\/dunegoonshop.com\/products\/wiseco-gp-series-piston-kit-honda-cr125r-56mm-big-bore-2003-2stroke","provider":"Dune Goons","version":"1.0","type":"link"}