{"product_id":"40200m09700-wiseco-std-piston-for-yamaha-yz450f-2018-2019-97mm-13-5-1-cr","title":"40200M09700 Wiseco Std Piston for Yamaha YZ450F 2018-2019 97mm 13.5:1 CR","description":"\u003ch2\u003eWiseco Std Piston for Yamaha YZ450F\u003c\/h2\u003e\u003cp\u003eThis Wiseco standard bore piston, cross-referenced as 40200M09700, is a 97mm piston with a 13.5:1 compression ratio built for Yamaha YZ450F models from 2018 to 2019.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis Wiseco standard piston is a 97mm piston kit for the Yamaha YZ450F, referenced under part number 40200M09700. It delivers a 13.5:1 compression ratio to support strong engine response in a rebuilt or refreshed top end. It is intended for riders and engine builders servicing YZ450F models from 2018 to 2019.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eStandard bore 97mm sizing for the YZ450F cylinder\u003c\/li\u003e\n\u003cli\u003e13.5:1 compression ratio for strong power output\u003c\/li\u003e\n\u003cli\u003eForged construction for durability under high-rpm use\u003c\/li\u003e\n\u003cli\u003eCross-referenced as Wiseco 40200M09700 for easy verification\u003c\/li\u003e\n\u003cli\u003eBuilt to handle the demands of motocross competition\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Yamaha YZ450F 2018\u003c\/li\u003e\n\u003cli\u003efor Yamaha YZ450F 2019\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTop-end rebuilds on YZ450F motocross bikes\u003c\/li\u003e\n\u003cli\u003eRefreshing compression after extended race hours\u003c\/li\u003e\n\u003cli\u003eStandard bore piston replacement without cylinder reboring\u003c\/li\u003e\n\u003cli\u003eTrack and trail use on 2018 to 2019 YZ450F models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number(s)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e40200M09700\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBore Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e97mm standard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompression Ratio\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13.5:1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eForged aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYamaha YZ450F, 2018-2019\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 piston require reboring the cylinder? \u003cstrong\u003eA:\u003c\/strong\u003e No, because it is a standard bore piston, it fits the factory 97mm cylinder size on the YZ450F without reboring.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e What does the 13.5:1 compression ratio mean for my bike? \u003cstrong\u003eA:\u003c\/strong\u003e It sets how tightly the air and fuel are compressed in the cylinder, which affects power output and how the engine runs on the fuel you choose.\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":51139985604694,"sku":"OO1C22399","price":549.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/s-l1600_17f09a1a-7a76-47ae-994c-a7e1415fb7b6.jpg?v=1794565869","url":"https:\/\/www.solidspare.com\/products\/40200m09700-wiseco-std-piston-for-yamaha-yz450f-2018-2019-97mm-13-5-1-cr","provider":"Solid Spare","version":"1.0","type":"link"}