{"product_id":"piston-kit-1981-yz80-49-50mm-forged-wossner-8184d050","title":"PISTON KIT 1981 YZ80 49.50mm, FORGED WOSSNER 8184D050","description":"The Wossner 49.50mm Bore Piston Kit (Part No. 8184D050) is a high-performance forged piston designed for the 1981 Yamaha YZ80. Engineered for durability and efficient heat transfer, it features an elliptical design to ensure even load distribution, reducing localized pressure and preventing piston collapse. Manufactured in Germany, this piston is specifically designed for two-stroke engines.\n\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eHigh-strength forged piston construction\u003c\/li\u003e\n\t\u003cli\u003eOptimized heat transfer for improved combustion efficiency\u003c\/li\u003e\n\t\u003cli\u003eElliptical design for even thrust load distribution\u003c\/li\u003e\n\t\u003cli\u003eDesigned for two-stroke applications\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 Size: 49.50mm\u003c\/li\u003e\n\t\u003cli\u003eActual Bore Diameter: 49.45mm\u003c\/li\u003e\n\t\u003cli\u003eCompression Ratio: Two-stroke\u003c\/li\u003e\n\t\u003cli\u003eOEM Compression Ratio: Two-stroke\u003c\/li\u003e\n\t\u003cli\u003eDisplacement: 79cc\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 Height: 24.20mm\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\u003eLock P\/N: CW12\u003c\/li\u003e\n\t\u003cli\u003ePin P\/N: WP091\u003c\/li\u003e\n\t\u003cli\u003eRing Set P\/N: RSB4950\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 (1981)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e","brand":"Wossner","offers":[{"title":"Default Title","offer_id":50691157721354,"sku":"56-W465+050.WO","price":90.55,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0846\/0094\/6954\/files\/stock54763_1.jpg?v=1738253253","url":"https:\/\/store.phoenixmotos.com\/products\/piston-kit-1981-yz80-49-50mm-forged-wossner-8184d050","provider":"Phoenix Motos","version":"1.0","type":"link"}