{"product_id":"vertex-gp-racers-choice-piston-kit-for-81mm-4-stroke","title":"Vertex GP Racer's Choice Piston Kit for 81mm 4-Stroke","description":"\u003cp\u003eUnleash maximum power and durability with the \u003cstrong\u003eVertex GP Racer's Choice 81mm 4-stroke piston kit\u003c\/strong\u003e. Engineered for serious racers, this high-performance piston kit delivers superior strength and an optimized compression ratio for a competitive advantage on the track or trail.\u003c\/p\u003e\n\n\u003ch2\u003eDescription\u003c\/h2\u003e\nThe Vertex GP Racer's Choice piston kit is meticulously designed to transform your 250cc 4-stroke engine's performance. Featuring advanced T-box forgings and unique dome profiles, these pistons are crafted from high-strength 2618 aluminum alloy, ensuring exceptional durability under extreme racing conditions. Each piston undergoes a rigorous T-5 hardening and tempering heat-treatment cycle, further enhancing its structural integrity and longevity. To minimize friction and accelerate the break-in process, the piston skirts are treated with a cutting-edge Molybdenum Disulphite coating, extending piston life and maintaining peak performance. With an 81.00 mm bore size and a standard compression ratio, this forged race piston kit is built to produce more power and withstand the demands of intense competition. The kit provides all essential components for a complete refresh, including the piston, high-quality rings, a sturdy wrist pin, and circlips.\n\n\u003ch2\u003eFeatures \u0026amp; Highlights\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized Power \u0026amp; Durability:\u003c\/strong\u003e Experience unmatched performance with T-box forgings, unique dome profiles, and specialized surface treatments that contribute to increased power, strength, and overall engine longevity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced Heat Treatment:\u003c\/strong\u003e Benefit from pistons that undergo a T-5 hardening and tempering cycle, ensuring superior resistance to wear and tear for sustained high-performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced Piston Life \u0026amp; Faster Break-in:\u003c\/strong\u003e The high-tech Molybdenum Disulphite coating on all piston skirts significantly reduces friction, promoting quicker break-in times and extending the operational life of your piston.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperior Strength Material:\u003c\/strong\u003e Forged from premium 2618 aluminum, these pistons offer exceptional strength and resilience, designed to withstand the rigors of competitive racing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Kit for Easy Installation:\u003c\/strong\u003e Each Vertex 81mm 4-stroke piston kit includes all necessary components: the piston, high-quality rings (Nitride Coated, Steel), a wrist pin, and circlips, simplifying your engine rebuild.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBrand: Vertex\u003c\/li\u003e\n\u003cli\u003eProduct Name: Piston Kit\u003c\/li\u003e\n\u003cli\u003eStyle: Forged Race\u003c\/li\u003e\n\u003cli\u003eEngine Type: 4-Stroke\u003c\/li\u003e\n\u003cli\u003eDisplacement: 250 cc\u003c\/li\u003e\n\u003cli\u003eBore Size: 81.00 mm\u003c\/li\u003e\n\u003cli\u003ePiston Diameter: 80.96 mm\u003c\/li\u003e\n\u003cli\u003ePiston Size: Standard Size A\u003c\/li\u003e\n\u003cli\u003ePiston Material: Forged Aluminum Alloy (2618)\u003c\/li\u003e\n\u003cli\u003eCompression Ratio: Standard\u003c\/li\u003e\n\u003cli\u003eSkirt Coating: Moly Coated (Molybdenum Disulphite)\u003c\/li\u003e\n\u003cli\u003eRing Material: Nitride Coated, Steel\u003c\/li\u003e\n\u003cli\u003eUnits: Kit\u003c\/li\u003e\n\u003cli\u003eVendor Part Number: 24634A\u003c\/li\u003e\n\u003cli\u003eMPN\/SKU: 09106689\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eImportant to Know\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eReplacement two-stroke piston rings are sold individually; replacement four-stroke piston rings are sold as a set.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Vertex","offers":[{"title":"Default Title","offer_id":62381547225418,"sku":"09106689","price":287.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0971\/0016\/9546\/files\/b122f24d7b24c145eb1ea76b7ca3f541.webp?v=1781742035","url":"https:\/\/partsdenmark.de\/products\/vertex-gp-racers-choice-piston-kit-for-81mm-4-stroke","provider":"Parts Denmark","version":"1.0","type":"link"}