{"product_id":"piston-kit-82-83-yz80-47-50-forged-wossner-8185d050","title":"PISTON KIT 82-83 YZ80 47.50, FORGED WOSSNER 8185D050","description":"Wossner 47.50mm Bore Piston Kit (PN# 8185D050) is designed for Yamaha YZ80 models from 1982 to 1983. This forged piston ensures high strength, efficient heat transfer, and durability. Its elliptical design provides a uniform bearing surface under heat expansion, reducing localized pressure and evenly distributing thrust loads to prevent piston collapse. Manufactured in Germany, this piston meets OEM compression standards.\n\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eHigh-strength forged piston for durability and performance\u003c\/li\u003e\n\t\u003cli\u003eOptimized heat transfer for efficient combustion\u003c\/li\u003e\n\t\u003cli\u003eElliptical design prevents piston collapse and ensures even load distribution\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: 47.50mm\u003c\/li\u003e\n\t\u003cli\u003eActual diameter: 47.45mm\u003c\/li\u003e\n\t\u003cli\u003eDisplay (cm³): 79\u003c\/li\u003e\n\t\u003cli\u003eStroke (mm): 55.50\u003c\/li\u003e\n\t\u003cli\u003eClearance (mm): 0.05\u003c\/li\u003e\n\t\u003cli\u003eCompression Ratio: OEM\u003c\/li\u003e\n\t\u003cli\u003eOEM Compression Ratio: 11.10:1\u003c\/li\u003e\n\t\u003cli\u003eDome Volume (cm³): -0.20\u003c\/li\u003e\n\t\u003cli\u003eCompression Height (mm): 22.80\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: CW12\u003c\/li\u003e\n\t\u003cli\u003ePin: WP091\u003c\/li\u003e\n\t\u003cli\u003eRing Set: RSB4750\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 (1982-1983)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e","brand":"Wossner","offers":[{"title":"Default Title","offer_id":50691252027658,"sku":"56-W477+050.WO","price":90.55,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0846\/0094\/6954\/files\/stock54989_1.jpg?v=1738254341","url":"https:\/\/store.phoenixmotos.com\/products\/piston-kit-82-83-yz80-47-50-forged-wossner-8185d050","provider":"Phoenix Motos","version":"1.0","type":"link"}