{"product_id":"piston-kit-14-15-yzf250-77-02-forged-wossner-8893dc","title":"PISTON KIT 14-15 YZF250 77.02, FORGED WOSSNER 8893DC","description":"\u003cp\u003eThis Wossner forged piston kit, part number 8893DC, features a 77.02mm bore with an actual piston size of 76.98mm (+0.02mm oversize). Designed for TM MX-F450 (2009–2010), MX-Fi450 (2011), and EN-Fi450 (2011), this German-made piston is engineered for performance with high strength, efficient heat transfer, and balanced load distribution through its elliptical profile, offering a compression increase over OEM specifications.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eForged construction for strength and durability in performance applications\u003c\/li\u003e\n\t\u003cli\u003eElliptical design supports even thermal expansion and thrust load distribution\u003c\/li\u003e\n\t\u003cli\u003eOptimized for efficient combustion heat transfer\u003c\/li\u003e\n\t\u003cli\u003eMade in Germany\u003c\/li\u003e\n\t\u003cli\u003eDirect OEM replacement\u003c\/li\u003e\n\t\u003cli\u003eEasy to install; professional installation recommended if unsure\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eBore Size: 77.02mm\u003c\/li\u003e\n\t\u003cli\u003eActual Piston Size: 76.98mm\u003c\/li\u003e\n\t\u003cli\u003eDisplacement: 249cm³\u003c\/li\u003e\n\t\u003cli\u003eStroke: 53.60mm\u003c\/li\u003e\n\t\u003cli\u003eClearance: 0.05mm\u003c\/li\u003e\n\t\u003cli\u003eDome Volume: -3.00cm³\u003c\/li\u003e\n\t\u003cli\u003eWossner Compression Ratio: 13.70:1\u003c\/li\u003e\n\t\u003cli\u003eOEM Compression Ratio: 13.50:1\u003c\/li\u003e\n\t\u003cli\u003eCompression Height: 20.20mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eCross-Reference OEM Part Numbers\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003e40116M07700\u003c\/li\u003e\n\t\u003cli\u003eCW16 (Lock)\u003c\/li\u003e\n\t\u003cli\u003eWP087 (Pin)\u003c\/li\u003e\n\t\u003cli\u003e770XAS-2 (Ring Set)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eVehicle Fitments\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eTM MX-F450 (2009–2010)\u003c\/li\u003e\n\t\u003cli\u003eTM MX-Fi450 (2011)\u003c\/li\u003e\n\t\u003cli\u003eTM EN-Fi450 (2011)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Wossner","offers":[{"title":"Default Title","offer_id":51391902482698,"sku":"56-w4961.c.wo","price":181.55,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0898\/2757\/4026\/files\/image-1-6E27DA70-C5C9-4273-AB79-27F2CA90CB7C_56-W4961.C.WO.jpg?v=1750687801","url":"https:\/\/2bros-mx.com\/products\/piston-kit-14-15-yzf250-77-02-forged-wossner-8893dc","provider":"2bros-mx.com","version":"1.0","type":"link"}