Vertex GP Racer's Choice Piston Kit for 81mm 4-Stroke

Unleash maximum power and durability with the Vertex GP Racer's Choice 81mm 4-stroke piston kit. 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.

Description

The 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.

Features & Highlights

• Optimized Power & Durability: Experience unmatched performance with T-box forgings, unique dome profiles, and specialized surface treatments that contribute to increased power, strength, and overall engine longevity.
• Advanced Heat Treatment: Benefit from pistons that undergo a T-5 hardening and tempering cycle, ensuring superior resistance to wear and tear for sustained high-performance.
• Enhanced Piston Life & Faster Break-in: 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.
• Superior Strength Material: Forged from premium 2618 aluminum, these pistons offer exceptional strength and resilience, designed to withstand the rigors of competitive racing.
• Complete Kit for Easy Installation: 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.

Technical Specifications

• Brand: Vertex
• Product Name: Piston Kit
• Style: Forged Race
• Engine Type: 4-Stroke
• Displacement: 250 cc
• Bore Size: 81.00 mm
• Piston Diameter: 80.96 mm
• Piston Size: Standard Size A
• Piston Material: Forged Aluminum Alloy (2618)
• Compression Ratio: Standard
• Skirt Coating: Moly Coated (Molybdenum Disulphite)
• Ring Material: Nitride Coated, Steel
• Units: Kit
• Vendor Part Number: 24634A
• MPN/SKU: 09106689

Important to Know

• Replacement two-stroke piston rings are sold individually; replacement four-stroke piston rings are sold as a set.