{"product_id":"piston-kit-07-09-rmz250-77-00-wossner-8666da-suzuki-12111-10h20-0f0","title":"PISTON KIT 07-09 RMZ250 77.00, WOSSNER 8666DA SUZUKI 12111-10H20-0F0","description":"\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\n\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eForged piston construction for enhanced strength and reliability\u003c\/li\u003e\n\t\u003cli\u003eDesigned to optimize heat transfer from combustion chamber to cylinder walls\u003c\/li\u003e\n\t\u003cli\u003eElliptical shape provides uniform pressure distribution during thermal expansion\u003c\/li\u003e\n\t\u003cli\u003eReduces risk of localized pressure and piston failure\u003c\/li\u003e\n\t\u003cli\u003eManufactured in Germany\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: 77.00 mm\u003c\/li\u003e\n\t\u003cli\u003eActual Bore Diameter: 76.96 mm\u003c\/li\u003e\n\t\u003cli\u003eDisplay: 249 cm³\u003c\/li\u003e\n\t\u003cli\u003eHub Stroke: 53.60 mm\u003c\/li\u003e\n\t\u003cli\u003eClearance: 0.04 mm\u003c\/li\u003e\n\t\u003cli\u003eCompression Height: 19.60 mm\u003c\/li\u003e\n\t\u003cli\u003eDome Volume: -3.30 cm³\u003c\/li\u003e\n\t\u003cli\u003eWossner Compression Ratio: OEM\u003c\/li\u003e\n\t\u003cli\u003eOEM Compression Ratio: 13.40:1\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\u003ePiston: 8666DA\u003c\/li\u003e\n\t\u003cli\u003eLock: CW16\u003c\/li\u003e\n\t\u003cli\u003ePin: WP070\u003c\/li\u003e\n\t\u003cli\u003eRing Set: 770XAS-2\u003c\/li\u003e\n\t\u003cli\u003eRod: P4004\u003c\/li\u003e\n\t\u003cli\u003eMain Bearing: 2 x MB830046\u003c\/li\u003e\n\t\u003cli\u003ePart No.: 56-W4921.A.WO\u003c\/li\u003e\n\t\u003cli\u003eOEM Reference: 12111-10H20-0F0, 4921M07700\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\u003eSuzuki RM-Z250 2007–2009\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Wossner","offers":[{"title":"Default Title","offer_id":51391897075978,"sku":"56-w4921.a.wo","price":171.27,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0898\/2757\/4026\/files\/image-1-6E27DA70-C5C9-4273-AB79-27F2CA90CB7C_56-W4921.A.WO.jpg?v=1750687783","url":"https:\/\/2bros-mx.com\/products\/piston-kit-07-09-rmz250-77-00-wossner-8666da-suzuki-12111-10h20-0f0","provider":"2bros-mx.com","version":"1.0","type":"link"}