{"product_id":"namura-standard-bore-piston-kit-size-b-96-96mm-for-yamaha-yz450fx-2016-2020-97mm","title":"Namura Standard Bore Piston Kit Size B 96.96mm for Yamaha YZ450FX 2016-2020 97mm","description":"\u003ch2\u003eNamura Standard Bore Piston Kit Size B 96.96mm for Yamaha\u003c\/h2\u003e\u003cp\u003eThis Namura standard bore piston kit size B with a 96.96mm piston diameter is an aftermarket replacement designed to restore compression and power in Yamaha YZ450FX engines from 2016 to 2020, compatible with the 97mm bore specification.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThe Namura Standard Bore Piston Kit Size B 96.96mm delivers a direct-fit replacement piston for Yamaha YZ450FX models 2016-2020. This piston kit includes the piston, rings, wrist pin, and circlips, providing everything needed for a top-end rebuild. It is engineered for riders seeking reliable performance and durability in their YZ450FX.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePrecision-machined from high-strength aluminum alloy for reduced weight and increased durability\u003c\/li\u003e\n\u003cli\u003eSize B (96.96mm) offers a slightly larger diameter than standard to compensate for cylinder wear\u003c\/li\u003e\n\u003cli\u003eIncludes matched piston rings for optimal sealing and compression\u003c\/li\u003e\n\u003cli\u003eCompatible with the 97mm nominal bore size of the YZ450FX\u003c\/li\u003e\n\u003cli\u003eDesigned for 2016-2020 Yamaha YZ450FX models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Yamaha YZ450FX (2016)\u003c\/li\u003e\n\u003cli\u003efor Yamaha YZ450FX (2017)\u003c\/li\u003e\n\u003cli\u003efor Yamaha YZ450FX (2018)\u003c\/li\u003e\n\u003cli\u003efor Yamaha YZ450FX (2019)\u003c\/li\u003e\n\u003cli\u003efor Yamaha YZ450FX (2020)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMotocross racing and off-road competition\u003c\/li\u003e\n\u003cli\u003eTrail riding and enduro events\u003c\/li\u003e\n\u003cli\u003eTop-end engine rebuilds and maintenance\u003c\/li\u003e\n\u003cli\u003eReplacement of worn or damaged pistons\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePiston Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e96.96mm (Size B)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal Bore Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e97mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Models\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYamaha YZ450FX 2016-2020\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 What is the difference between Size B and standard? \u003cstrong\u003eA:\u003c\/strong\u003e Size B pistons have a slightly larger diameter than stock, allowing use in cylinders that have been honed to the next oversize to restore proper clearance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does this kit include wrist pin and circlips? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, the kit includes the piston, rings, wrist pin, and circlips for a complete 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":44949765554262,"sku":"SZ1F14409","price":219.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_29164ac2-f08b-4b6b-b8e9-0af66cb1e9cd.jpg?v=1781398412","url":"https:\/\/www.solidspare.com\/products\/namura-standard-bore-piston-kit-size-b-96-96mm-for-yamaha-yz450fx-2016-2020-97mm","provider":"Solid Spare","version":"1.0","type":"link"}