{"product_id":"athena-s5f05300001a-piston-kit-b-bore-cast-lite-for-yamaha-yz85","title":"Athena S5F05300001A Piston Kit B-Bore Cast Lite for Yamaha YZ85","description":"\u003cp\u003eThe Athena S5F05300001A Piston Kit is a precision-engineered replacement assembly for compatible Yamaha YZ85 two-stroke motorcycles. This B-bore Cast Lite piston is designed with a 52.95 mm piston size and a 13.8:1 compression ratio, supporting dependable engine performance for motocross and off-road applications. The lightweight cast construction helps provide a responsive engine feel while maintaining the durability required for demanding riding conditions.\u003c\/p\u003e\u003cp\u003eThis piston kit is manufactured by Athena and supplied under vendor part number S5F05300001A. It is designed to fit 2002–2011 Yamaha YZ85 models, including the 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, and 2011 model years. Confirm the existing piston specification, cylinder condition, and required service clearances before installation to ensure proper compatibility and engine life. Professional installation and adherence to Yamaha service procedures are recommended.\u003c\/p\u003e\u003cp\u003eBuilt as a direct replacement component for applicable engines, the Athena Cast Lite piston kit is suited for riders and technicians restoring performance or replacing a worn piston assembly. Its application-specific design helps simplify fitment while supporting consistent combustion and reliable operation when installed with the correct related components and clearances.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBrand: Athena\u003c\/li\u003e\n\u003cli\u003eManufacturer: Athena\u003c\/li\u003e\n\u003cli\u003eVendor Part Number: S5F05300001A\u003c\/li\u003e\n\u003cli\u003ePiston Size: 52.95 mm\u003c\/li\u003e\n\u003cli\u003ePiston Type: B-bore Cast Lite\u003c\/li\u003e\n\u003cli\u003eCompression Ratio: 13.8:1\u003c\/li\u003e\n\u003cli\u003eFitment: 2002–2011 Yamaha YZ85\u003c\/li\u003e\n\u003cli\u003eApplication: Replacement piston kit for Yamaha YZ85 two-stroke motorcycles\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2002 Yamaha YZ85\u003cbr\u003e\n2003 Yamaha YZ85\u003cbr\u003e\n2004 Yamaha YZ85\u003cbr\u003e\n2005 Yamaha YZ85\u003cbr\u003e\n2006 Yamaha YZ85\u003cbr\u003e\n2007 Yamaha YZ85\u003cbr\u003e\n2008 Yamaha YZ85\u003cbr\u003e\n2009 Yamaha YZ85\u003cbr\u003e\n2010 Yamaha YZ85\u003cbr\u003e\n2011 Yamaha YZ85\u003cbr\u003e\n2012 Yamaha YZ85\u003cbr\u003e\n2013 Yamaha YZ85\u003cbr\u003e\n2014 Yamaha YZ85\u003cbr\u003e\n2015 Yamaha YZ85\u003cbr\u003e\n2016 Yamaha YZ85\u003cbr\u003e\n2017 Yamaha YZ85\u003cbr\u003e\n2018 Yamaha YZ85\u003cbr\u003e\n2019 Yamaha YZ85\u003cbr\u003e\n2020 Yamaha YZ85\u003cbr\u003e\n2021 Yamaha YZ85\u003cbr\u003e\n2022 Yamaha YZ85\u003cbr\u003e\n2023 Yamaha YZ85\u003cbr\u003e\n2024 Yamaha YZ85","brand":"ATHENA","offers":[{"title":"Default Title","offer_id":67549830709483,"sku":"68-4869A","price":199.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/abab-59b9943fee6b7.jpg?v=1790695954","url":"https:\/\/ctracingservices.com\/products\/athena-s5f05300001a-piston-kit-b-bore-cast-lite-for-yamaha-yz85","provider":"Cascade Tire \u0026 Racing Services","version":"1.0","type":"link"}