{"product_id":"namura-standard-bore-top-end-rebuild-kit-size-b-for-yamaha-yz450f-2020-2022-97mm","title":"Namura Standard Bore Top End Rebuild Kit Size B for Yamaha YZ450F 2020-2022 97mm","description":"\u003ch2\u003eStandard Bore Top End Rebuild Kit Size B for Yamaha YZ450F 2020-2022\u003c\/h2\u003e\u003cp\u003eThe Standard Bore Top End Rebuild Kit Size B delivers a complete set of piston, rings, pin, and gaskets for restoring compression and power in 2020-2022 Yamaha YZ450F engines, featuring a 97mm bore.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis top end rebuild kit is engineered for Yamaha YZ450F models from 2020 to 2022, providing a precise 97mm bore and Size B piston for a reliable overhaul. The kit includes a piston, rings, wrist pin, circlips, and all necessary gaskets to complete the job. Whether rebuilding after hours of hard riding or performing preventative maintenance, this top end rebuild kit ensures the engine runs like new.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e97mm bore piston designed for standard cylinder dimensions\u003c\/li\u003e\n\u003cli\u003eSize B piston provides proper clearance for stock Yamaha YZ450F cylinders\u003c\/li\u003e\n\u003cli\u003eComplete gasket set included for a hassle-free installation\u003c\/li\u003e\n\u003cli\u003eHeat-treated wrist pin and circlips ensure secure assembly\u003c\/li\u003e\n\u003cli\u003eMatching rings pre-gapped for quick installation\u003c\/li\u003e\n\u003cli\u003eAll components are precision-machined to Namura's quality standards\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Yamaha YZ450F 2020\u003c\/li\u003e\n\u003cli\u003efor Yamaha YZ450F 2021\u003c\/li\u003e\n\u003cli\u003efor Yamaha YZ450F 2022\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMotocross and supercross racing requiring frequent top end refresh\u003c\/li\u003e\n\u003cli\u003eOff-road trail and desert riding where engine longevity is critical\u003c\/li\u003e\n\u003cli\u003eComplete engine rebuild during off-season maintenance\u003c\/li\u003e\n\u003cli\u003eHigh-performance recreational riding on closed courses\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBore Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e97mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePiston Grade\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSize B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eKit Contents\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePiston, Rings, Wrist Pin, Circlips, Gaskets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYamaha YZ450F (2020-2022)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch4\u003eGood To Know\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does this kit include a new cylinder or only piston and gaskets? \u003cstrong\u003eA:\u003c\/strong\u003e This kit includes piston, rings, wrist pin, circlips, and a full gasket set; it does not include a new cylinder.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Is the piston pre-installed on the rod? \u003cstrong\u003eA:\u003c\/strong\u003e No, the piston comes separately and must be assembled with the wrist pin and circlips during installation.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eSlight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"Solid Spare","offers":[{"title":"Default Title","offer_id":44949899903062,"sku":"SZ1F16106","price":373.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_b74d640c-0951-4b53-8de2-456c7f4091b0.jpg?v=1781401174","url":"https:\/\/www.solidspare.com\/products\/namura-standard-bore-top-end-rebuild-kit-size-b-for-yamaha-yz450f-2020-2022-97mm","provider":"Solid Spare","version":"1.0","type":"link"}