{"product_id":"athena-s5f08300002b-piston-kit-290cc-big-bore-83mm-oversize-to-82-96mm-12-5-1-compression","title":"Athena S5F08300002B Piston Kit (290cc Big Bore) - 83mm Oversize to 82.96mm, 12.5:1 Compression","description":"Bore: 82.96mm\u003cbr\u003e Compression: 12.5:1 Compression\u003cbr\u003e Sizing: Oversize\u003cbr\u003e\u003cbr\u003eAll pistons are forged using a precision heat-treatment process that allows for production tolerances of just .005mm. Forged piston kits are available in A, B and C sizing. Forged piston tooling allows for the lightest available product. Kits include antiwear coated piston, rings, pin and circlip. Made in Germany.\u003cbr\u003e\u003cbr\u003eVehicle Fitment:\u003cbr\u003e\u003cbr\u003e2001-2009 Yamaha WR250F\u003cbr\u003e 2011-2012 Yamaha WR250F\u003cbr\u003e 2001-2007 Yamaha YZ250F","brand":"Athena","offers":[{"title":"Default Title","offer_id":44030388338810,"sku":"8484858","price":263.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0004\/3312\/7455\/files\/9c9dcf842fd249308767a247b040d856.jpg?v=1764745025","url":"https:\/\/www.powersportsuperstore.com\/products\/athena-s5f08300002b-piston-kit-290cc-big-bore-83mm-oversize-to-82-96mm-12-5-1-compression","provider":"Powersport Superstore","version":"1.0","type":"link"}