{"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","url":"https:\/\/dunegoonshop.com\/products\/athena-big-bore-piston-kit-97-95mm-yfz450r-x","provider":"Dune Goons","version":"1.0","type":"link"}