{"product_id":"wossner-standard-series-piston-kit-for-250cc-4-stroke-1","title":"Wossner Standard Series Piston Kit for 250cc 4-Stroke","description":"\u003cp\u003eUnleash the full potential of your 250cc 4-stroke engine with the high-performance Wossner Standard Series piston kit. Engineered for precision and durability, this kit delivers a significant upgrade in power and reliability, ensuring your ride performs at its peak.\u003c\/p\u003e\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eThe Wossner Standard Series piston kit is meticulously designed for motorcycle enthusiasts seeking to enhance their 250cc 4-stroke engine's performance. Each \u003cstrong\u003eWossner forged piston\u003c\/strong\u003e is crafted from aerospace-grade aluminum alloy, ensuring exceptional strength while maintaining optimal lightness through precision machining. This results in superior durability in critical areas like the crown and skirt wall cross-section, even under the demands of a high \u003cstrong\u003e13.2:1 compression ratio\u003c\/strong\u003e.\u003c\/p\u003e\u003cp\u003eA key feature is the advanced Molybdenum Disulphite (Moly) skirt coating. This permanent coating significantly reduces friction and piston rock, contributing to quieter operation, improved engine efficiency, and assisting with proper break-in. With a precise 77.94 mm piston diameter (for a 78.00 mm bore size) and a robust dual-ring design featuring nitride coated steel cast rings, this \u003cstrong\u003emotorcycle piston kit\u003c\/strong\u003e provides a tight seal and reliable power delivery, making it an ideal choice for both standard replacement and performance upgrades.\u003c\/p\u003e\u003ch2\u003eFeatures \u0026amp; Highlights\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced Durability \u0026amp; Performance:\u003c\/strong\u003e Forged from aerospace-grade aluminum alloy, these pistons offer exceptional strength, optimized for lightness in key areas like the crown and skirt wall cross-section, ensuring long-lasting, high-performance operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReduced Friction \u0026amp; Wear:\u003c\/strong\u003e The permanent Molybdenum Disulphite (Moly) skirt coating actively minimizes friction and piston rock, leading to quieter engine operation, improved efficiency, and extended piston life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized Compression:\u003c\/strong\u003e Designed with a high 13.2:1 compression ratio, this kit maximizes combustion efficiency, delivering increased power and responsiveness from your 250cc 4-stroke engine.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Kit for Easy Installation:\u003c\/strong\u003e Each \u003cstrong\u003eWossner forged piston\u003c\/strong\u003e kit includes the piston, high-quality rings (nitride coated, steel, cast), a piston pin, and retaining clips, providing all necessary components for a straightforward installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Engineering:\u003c\/strong\u003e Featuring a precise 77.94 mm piston diameter and a robust dual-ring design, this kit ensures an excellent seal and consistent power delivery, optimized for a 78.00 mm bore.\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 Standard Series\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\u003ePiston Type:\u003c\/strong\u003e Dual Ring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePiston Material:\u003c\/strong\u003e Forged Aluminum Alloy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePiston Diameter:\u003c\/strong\u003e 77.94 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore Size:\u003c\/strong\u003e 78.00 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompression Ratio:\u003c\/strong\u003e 13.2:1\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\u003ePiston Size:\u003c\/strong\u003e Standard Size A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnits:\u003c\/strong\u003e Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVendor Part Number:\u003c\/strong\u003e 8905DA\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Wossner","offers":[{"title":"Default Title","offer_id":62381570720074,"sku":"09107119","price":2415.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0971\/0016\/9546\/files\/6bfa08f00e41d1542593858f849be5b8_22bfb0be-6599-45e8-9e10-53f13785787f.webp?v=1781742727","url":"https:\/\/partsdenmark.se\/products\/wossner-standard-series-piston-kit-for-250cc-4-stroke-1","provider":"Parts Denmark","version":"1.0","type":"link"}