{"product_id":"ref-56-w4921-a-wo","title":"WOSSNER 77mm PISTON KIT A, SUZUKI RM-Z250 2007-2009","description":"\u003cbody\u003e\n\n\n\n\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003eThe Wossner 8666DA forged piston kit with a 77.00mm bore is designed for Suzuki RM-Z250 models from 2007 to 2009. Manufactured in Germany, this piston delivers excellent durability, heat transfer, and performance. Its elliptical design ensures even bearing contact under heat expansion, reducing stress points and preventing piston collapse.\u003c\/p\u003e  \u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eForged piston construction for enhanced strength and reliability\u003c\/li\u003e \t\u003cli\u003eDesigned to optimize heat transfer from combustion chamber to cylinder walls\u003c\/li\u003e \t\u003cli\u003eElliptical shape provides uniform pressure distribution during thermal expansion\u003c\/li\u003e \t\u003cli\u003eReduces risk of localized pressure and piston failure\u003c\/li\u003e \t\u003cli\u003eManufactured in Germany\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eBore: 77.00 mm\u003c\/li\u003e \t\u003cli\u003eActual Bore Diameter: 76.96 mm\u003c\/li\u003e \t\u003cli\u003eDisplay: 249 cm³\u003c\/li\u003e \t\u003cli\u003eHub Stroke: 53.60 mm\u003c\/li\u003e \t\u003cli\u003eClearance: 0.04 mm\u003c\/li\u003e \t\u003cli\u003eCompression Height: 19.60 mm\u003c\/li\u003e \t\u003cli\u003eDome Volume: -3.30 cm³\u003c\/li\u003e \t\u003cli\u003eWossner Compression Ratio: OEM\u003c\/li\u003e \t\u003cli\u003eOEM Compression Ratio: 13.40:1\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eCross-Reference OEM Part Numbers\u003c\/strong\u003e\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003ePiston: 8666DA\u003c\/li\u003e \t\u003cli\u003eLock: CW16\u003c\/li\u003e \t\u003cli\u003ePin: WP070\u003c\/li\u003e \t\u003cli\u003eRing Set: 770XAS-2\u003c\/li\u003e \t\u003cli\u003eRod: P4004\u003c\/li\u003e \t\u003cli\u003eMain Bearing: 2 x MB830046\u003c\/li\u003e \t\u003cli\u003ePart No.: 56-W4921.A.WO\u003c\/li\u003e \t\u003cli\u003eOEM Reference: 12111-10H20-0F0, 4921M07700\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eVehicle Fitments\u003c\/strong\u003e\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eSuzuki RM-Z250 2007–2009\u003c\/li\u003e \u003c\/ul\u003e\n\u003cp\u003eMajority of our listings are for a direct replacement for your original part.\u003c\/p\u003e\n\u003cp\u003eOur parts are made of quality and are designed to meet or exceed the original OEM Standards.\u003c\/p\u003e\n\u003cp\u003eOur products are often a cost effective alternative to genuine OEM Parts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease note: \u003c\/strong\u003ethe models of bike we state in our listings are for general guidance only. Please make sure this item will fit your bike before purchasing. Also, we cannot guarantee fitment to any non-UK models. \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\n\u003c\/body\u003e","brand":"AW Motorcycle Parts","offers":[{"title":"Default Title","offer_id":55594835804534,"sku":"REF 56-W4921.A.WO","price":141.72,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0917\/7032\/3318\/files\/stock55326_1.jpg?v=1746768449","url":"https:\/\/n0jgtc-nz.myshopify.com\/products\/ref-56-w4921-a-wo","provider":"AW Motorcycle Parts","version":"1.0","type":"link"}