{"product_id":"wossner-pro-series-piston-kit-for-250cc-4-stroke","title":"Wossner Pro Series Piston Kit for 250cc 4-Stroke","description":"\u003cp\u003eUpgrade your motorcycle's engine performance and durability with the \u003cstrong\u003eWossner Pro Series 250cc Piston Kit\u003c\/strong\u003e. Engineered for demanding 4-stroke applications, this premium kit delivers superior power output and extended engine life, making it ideal for both competitive riders and serious enthusiasts.\u003c\/p\u003e\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eThe Wossner Pro Series piston kit is meticulously designed to meet the rigorous demands of high-performance 250cc 4-stroke engines. Each \u003cstrong\u003eforged aluminum piston\u003c\/strong\u003e is crafted from aerospace-grade alloy, ensuring exceptional strength and reliability under extreme conditions. With an impressive 13.9:1 compression ratio, this kit is built to unlock maximum power and responsiveness from your engine. The pistons feature an advanced Molybdenum Disulphite skirt coating, a permanent treatment that significantly reduces friction and piston rock, leading to quieter operation, improved efficiency, and enhanced longevity. Precision machining optimizes the piston's weight without compromising strength in critical areas like the crown and skirt wall cross-section. This comprehensive \u003cstrong\u003e4-stroke piston kit\u003c\/strong\u003e includes everything needed for a complete rebuild: the piston, high-quality nitride coated steel rings, wrist pin, and circlips, ensuring a perfect fit for a 78.00 mm bore.\u003c\/p\u003e\u003ch2\u003eFeatures \u0026amp; Highlights\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAerospace-Grade Forged Construction:\u003c\/strong\u003e Manufactured from premium aerospace-grade aluminum alloy, these pistons offer superior strength and durability for the most demanding 4-stroke applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced Moly Skirt Coating:\u003c\/strong\u003e A permanent Molybdenum Disulphite coating reduces friction, minimizes piston rock, and assists during engine break-in, leading to quieter running and extended engine life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized Lightweight Design:\u003c\/strong\u003e Precision machining ensures an ideal balance of lightness and structural integrity, maintaining strength in crucial areas like the crown and skirt wall for peak performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Compression Ratio:\u003c\/strong\u003e Engineered with a 13.9:1 compression ratio to maximize power output and engine responsiveness for competitive or high-performance riding.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Piston Kit:\u003c\/strong\u003e Each kit provides a full set for convenient installation, including the forged piston, high-quality nitride coated steel rings, wrist pin, and circlips.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Wossner\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e Pro Series\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Piston Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Type:\u003c\/strong\u003e 4-Stroke\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisplacement:\u003c\/strong\u003e 250 cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore Size:\u003c\/strong\u003e 78.00 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePiston Diameter:\u003c\/strong\u003e 77.96 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePiston Size:\u003c\/strong\u003e Standard Size A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompression Ratio:\u003c\/strong\u003e 13.9:1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePiston Material:\u003c\/strong\u003e Forged Aluminum Alloy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSkirt Coating:\u003c\/strong\u003e Molybdenum Disulphite\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing Material:\u003c\/strong\u003e Nitride Coated, Steel, Cast\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKit Includes:\u003c\/strong\u003e Piston, Rings, Pin, Clips\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMPN\/SKU:\u003c\/strong\u003e 09107058\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVendor Part Number:\u003c\/strong\u003e 8590DA\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Wossner","offers":[{"title":"Default Title","offer_id":62381566427466,"sku":"09107058","price":207.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0971\/0016\/9546\/files\/98e46390bd48eeeca6d48b4b396326c8_762e881d-d99e-44a3-abb9-2643537d0f35.webp?v=1781742507","url":"https:\/\/partsdenmark.com\/it\/products\/wossner-pro-series-piston-kit-for-250cc-4-stroke","provider":"Parts Denmark","version":"1.0","type":"link"}