{"product_id":"piston-kit-76-80-yz80-50-50-forged-wossner-8183d150","title":"PISTON KIT 76-80 YZ80 50.50, FORGED WOSSNER 8183D150","description":"Wössner 50.50mm forged piston kit designed for Yamaha YZ80 models from 1976 to 1980. Engineered for optimal combustion chamber heat transfer and uniform load distribution, reducing localized pressure and preventing piston collapse. Made in Germany for durability and performance.\n\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eForged construction for superior strength and durability\u003c\/li\u003e\n\t\u003cli\u003eOptimized heat transfer to cylinder walls\u003c\/li\u003e\n\t\u003cli\u003eElliptical design ensures uniform bearing surface under heat expansion\u003c\/li\u003e\n\t\u003cli\u003eReduces localized pressure and evenly distributes thrust loads\u003c\/li\u003e\n\t\u003cli\u003ePrevents piston collapse under high-stress conditions\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: 50.50mm\u003c\/li\u003e\n\t\u003cli\u003eWössner Part Number: 8183D150\u003c\/li\u003e\n\t\u003cli\u003eLock Part Number: CW12\u003c\/li\u003e\n\t\u003cli\u003ePin Part Number: WP091\u003c\/li\u003e\n\t\u003cli\u003eRing Set Part Number: RSB5050\u003c\/li\u003e\n\t\u003cli\u003eDisplacement: 79 cm³\u003c\/li\u003e\n\t\u003cli\u003eStroke: 42.00mm\u003c\/li\u003e\n\t\u003cli\u003eClearance: 0.05mm\u003c\/li\u003e\n\t\u003cli\u003eCompression Ratio: 2-stroke\u003c\/li\u003e\n\t\u003cli\u003eCompression Height: 29.50mm\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\u003eNot specified\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\u003eYamaha YZ80 (1976-1980)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e","brand":"Wossner","offers":[{"title":"Default Title","offer_id":50697763946762,"sku":"56-W457+150.WO","price":95.79,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0846\/0094\/6954\/files\/stock54665_1.jpg?v=1738345752","url":"https:\/\/store.phoenixmotos.com\/products\/piston-kit-76-80-yz80-50-50-forged-wossner-8183d150","provider":"Phoenix Motos","version":"1.0","type":"link"}