Wossner Pro Series Piston Kit for 250cc 4-Stroke Engines

Unleash the full potential of your 250cc 4-stroke engine with the Wossner Pro Series Piston Kit. Engineered for exceptional durability and performance, this high-quality kit provides everything needed for a robust engine rebuild or upgrade, ensuring your motorcycle operates at its peak.

Description

The Wossner Pro Series 250cc 4-stroke piston kit is meticulously crafted from aerospace-grade forged aluminum alloy, offering superior strength and longevity compared to cast alternatives. Each piston features an optimized design with precision machining, achieving an ideal balance of lightness for reduced reciprocating mass and maintained strength in critical areas like the crown and skirt wall cross-section. This results in improved throttle response and higher RPM capabilities without compromising reliability. A key performance advantage is the advanced Molybdenum Disulphite (Moly) skirt coating, a permanent application that significantly reduces friction and minimizes piston rock. This not only contributes to quieter operation but also enhances overall engine efficiency and extends the lifespan of both the piston and cylinder. With a precise 74.95 mm piston diameter designed for a 75.00 mm bore and an aggressive 12.8:1 compression ratio, this Wossner forged piston kit is built to deliver race-proven power and consistent performance for demanding riders.

Features & Highlights

• Aerospace-Grade Forged Aluminum: Constructed from premium forged aluminum alloy for unmatched strength, durability, and resilience under extreme engine conditions.
• Advanced Molybdenum Disulphite Skirt Coating: Features a permanent Moly coating on the skirt to drastically reduce friction, minimize piston rock, and ensure quieter, more efficient engine operation.
• Optimized Lightweight Design: Precision machining balances reduced weight for improved acceleration and responsiveness with reinforced strength in critical stress areas.
• Complete Engine Rebuild Kit: Each Wossner motorcycle piston kit includes the high-performance piston, nitride-coated steel rings, piston pin, and retaining clips, providing all necessary components for a comprehensive rebuild.
• High Compression Performance: Engineered with a 12.8:1 compression ratio to maximize power output and engine efficiency, perfect for performance-oriented 4-stroke applications.

Technical Specifications

• Brand: Wossner
• Model: Pro Series
• Product Name: Piston Kit
• Engine Type: 4-Stroke
• Displacement: 250 cc
• Piston Material: Forged Aluminum Alloy
• Piston Diameter: 74.95 mm
• Bore Size: 75.00 mm
• Compression Ratio: 12.8:1
• Skirt Coating: Molybdenum Disulphite
• Ring Material: Nitride Coated Steel, Cast
• Piston Size: Standard Size A
• Kit Includes: Piston, Rings, Pin, Clips

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