{"product_id":"piston-kit-14-15-yzf250-77-00-forged-wossner-8893db","title":"Piston Kit 14-15 YZF250 77.00, Forged Wossner 8893DB","description":"\u003cp\u003eThis Wossner forged piston kit, part number 8893DB, features a 77.01mm bore with an actual piston size of 76.97mm (+0.01mm oversize). Designed for TM MX-F450 (2009–2010), MX-Fi450 (2011), and EN-Fi450 (2011) models, it delivers high-performance characteristics through its forged construction and elliptical profile, ensuring strength, heat efficiency, and balanced load distribution under expansion. Manufactured in Germany, this piston is suitable for racing and performance applications.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eForged construction for enhanced durability and strength\u003c\/li\u003e \u003cli\u003eElliptical design promotes even expansion and load distribution\u003c\/li\u003e \u003cli\u003eEngineered for efficient heat dissipation\u003c\/li\u003e \u003cli\u003eMade in Germany\u003c\/li\u003e \u003cli\u003eDirect OEM replacement\u003c\/li\u003e \u003cli\u003eEasy to install; professional installation recommended if unsure\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eBore Size: 77.01mm\u003c\/li\u003e \u003cli\u003eActual Piston Size: 76.97mm\u003c\/li\u003e \u003cli\u003eDisplacement: 249cm³\u003c\/li\u003e \u003cli\u003eStroke: 53.60mm\u003c\/li\u003e \u003cli\u003eClearance: 0.05mm\u003c\/li\u003e \u003cli\u003eDome Volume: -3.00cm³\u003c\/li\u003e \u003cli\u003eWossner Compression Ratio: 13.70:1\u003c\/li\u003e \u003cli\u003eOEM Compression Ratio: 13.50:1\u003c\/li\u003e \u003cli\u003eCompression Height: 20.20mm\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eCross-Reference OEM Part Numbers\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e40116M07700\u003c\/li\u003e \u003cli\u003eCW16 (Lock)\u003c\/li\u003e \u003cli\u003eWP087 (Pin)\u003c\/li\u003e \u003cli\u003e770XAS-2 (Ring Set)\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eVehicle Fitments\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eTM MX-F450 (2009–2010)\u003c\/li\u003e \u003cli\u003eTM MX-Fi450 (2011)\u003c\/li\u003e \u003cli\u003eTM EN-Fi450 (2011)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- venture-connect-compatibility:start --\u003e\n\u003csection class=\"venture-connect-compatibility\"\u003e\u003ch3\u003eVehicle Compatibility\u003c\/h3\u003e\n\u003cp\u003ePlease check the exact model and year before ordering.\u003c\/p\u003e\n\u003cdiv style=\"overflow-x:auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eManufacturer\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eYAMAHA\u003c\/td\u003e\n\u003ctd\u003eYZF X 250\u003c\/td\u003e\n\u003ctd\u003e2015-2019\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYAMAHA\u003c\/td\u003e\n\u003ctd\u003eWRF 250\u003c\/td\u003e\n\u003ctd\u003e2015-2018\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYAMAHA\u003c\/td\u003e\n\u003ctd\u003eWR F 250\u003c\/td\u003e\n\u003ctd\u003e2015-2017\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYAMAHA\u003c\/td\u003e\n\u003ctd\u003eYZ FX 250\u003c\/td\u003e\n\u003ctd\u003e2015-2016\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYAMAHA\u003c\/td\u003e\n\u003ctd\u003eYZ F 250\u003c\/td\u003e\n\u003ctd\u003e2014-2015\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYAMAHA\u003c\/td\u003e\n\u003ctd\u003eYZF X 250\u003c\/td\u003e\n\u003ctd\u003e2015-2016\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYAMAHA\u003c\/td\u003e\n\u003ctd\u003eWRF 250\u003c\/td\u003e\n\u003ctd\u003e2015-2017\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYAMAHA\u003c\/td\u003e\n\u003ctd\u003eYZF 250\u003c\/td\u003e\n\u003ctd\u003e2014-2015\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYAMAHA\u003c\/td\u003e\n\u003ctd\u003eYZF X 250\u003c\/td\u003e\n\u003ctd\u003e2014-2015\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYAMAHA\u003c\/td\u003e\n\u003ctd\u003eWRF 250\u003c\/td\u003e\n\u003ctd\u003e2014-2017\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003c\/section\u003e\n\u003c!-- venture-connect-compatibility:end --\u003e","brand":"Wossner","offers":[{"title":"Default Title","offer_id":57506583380348,"sku":"56-W4961.B.WO","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3952\/8167\/files\/stock55424_1.jpg?v=1790480721","url":"https:\/\/radhouse.co.uk\/products\/piston-kit-14-15-yzf250-77-00-forged-wossner-8893db","provider":"Radhouse","version":"1.0","type":"link"}