Wossner Pro Series Piston Kit for 250cc 4-Stroke

Upgrade your motorcycle's engine performance and durability with the Wossner Pro Series 250cc Piston Kit. 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.

Description

The Wossner Pro Series piston kit is meticulously designed to meet the rigorous demands of high-performance 250cc 4-stroke engines. Each forged aluminum piston 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 4-stroke piston kit 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.

Features & Highlights

• Aerospace-Grade Forged Construction: Manufactured from premium aerospace-grade aluminum alloy, these pistons offer superior strength and durability for the most demanding 4-stroke applications.
• Advanced Moly Skirt Coating: A permanent Molybdenum Disulphite coating reduces friction, minimizes piston rock, and assists during engine break-in, leading to quieter running and extended engine life.
• Optimized Lightweight Design: 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.
• High-Compression Ratio: Engineered with a 13.9:1 compression ratio to maximize power output and engine responsiveness for competitive or high-performance riding.
• Complete Piston Kit: Each kit provides a full set for convenient installation, including the forged piston, high-quality nitride coated steel rings, wrist pin, and circlips.

Technical Specifications

• Brand: Wossner
• Model: Pro Series
• Product Type: Piston Kit
• Engine Type: 4-Stroke
• Displacement: 250 cc
• Bore Size: 78.00 mm
• Piston Diameter: 77.96 mm
• Piston Size: Standard Size A
• Compression Ratio: 13.9:1
• Piston Material: Forged Aluminum Alloy
• Skirt Coating: Molybdenum Disulphite
• Ring Material: Nitride Coated, Steel, Cast
• Kit Includes: Piston, Rings, Pin, Clips
• MPN/SKU: 09107058
• Vendor Part Number: 8590DA