{"product_id":"piston-kit-14-yzf250-77mm-hc-forged-wossner-8894db","title":"PISTON KIT 14- YZF250 77mm HC, FORGED WOSSNER 8894DB","description":"This Wossner forged piston kit, part number 8893DB, features a 77.01mm bore with an actual piston size of 76.96mm (+0.01mm oversize). Designed for Yamaha YZF250 models from 2014 to 2015, this high-compression piston is manufactured in Germany and engineered for enhanced durability, efficient heat transfer, and optimal performance. Its elliptical profile ensures uniform expansion and balanced thrust loads during operation.\n\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eForged construction for strength and high durability\u003c\/li\u003e\n\t\u003cli\u003eHigh compression design for improved performance\u003c\/li\u003e\n\t\u003cli\u003eElliptical shape supports even expansion and load distribution\u003c\/li\u003e\n\t\u003cli\u003eDesigned for efficient heat transfer from combustion chamber\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: 77.01mm\u003c\/li\u003e\n\t\u003cli\u003eActual Piston Size: 76.96mm\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\u003e1SM-11631-01-00\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\u003eYZF250 (2014–2015)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e","brand":"Wossner","offers":[{"title":"Default Title","offer_id":50690872508682,"sku":"56-W4962.B.WO","price":184.55,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0846\/0094\/6954\/files\/stock55432_1.jpg?v=1738251552","url":"https:\/\/store.phoenixmotos.com\/products\/piston-kit-14-yzf250-77mm-hc-forged-wossner-8894db","provider":"Phoenix Motos","version":"1.0","type":"link"}