Wossner Pro Series Piston Kit for 125cc 4-Stroke

Elevate your motorcycle's performance with the Wossner Pro Series 125cc 4-stroke piston kit, engineered for superior durability and power. This comprehensive kit provides everything you need for a robust engine rebuild or upgrade, ensuring quiet operation and enhanced longevity.

Description

The Wossner Pro Series piston kit is meticulously crafted to deliver exceptional performance and reliability for your 125cc 4-stroke engine. Each piston is precision-forged from high-strength aerospace-grade aluminum alloy, ensuring maximum durability under extreme conditions while maintaining optimal lightness. The advanced design features optimized machining in critical areas like the crown and skirt wall cross-section, providing superior strength where it matters most without adding unnecessary weight. This results in a piston that can withstand the rigors of high-performance riding, whether on the track or trail.

A key innovation in this Wossner 125cc 4-stroke piston kit is the permanent Molybdenum Disulphite (Moly) skirt coating. This high-quality coating significantly reduces friction and minimizes piston rock within the cylinder, leading to quieter engine operation, improved efficiency, and an extended lifespan for both the piston and cylinder. The Moly coating also aids in the crucial break-in process, allowing for smoother initial operation and better long-term wear characteristics. With a precise 54.50 mm bore size and an 11.0:1 compression ratio, this kit is designed to restore or enhance your engine's power output. The kit includes a piston, nitride-coated steel and cast rings, a wrist pin, and clips, providing a complete solution for your engine's needs.

Features & Highlights

• Enhanced Durability & Performance: Forged from aerospace-grade aluminum alloy with optimized machining for superior strength in the crown and skirt, ensuring long-lasting, high-performance operation.
• Reduced Friction & Wear: Features a permanent Molybdenum Disulphite (Moly) skirt coating that minimizes friction and piston rock, leading to quieter engine performance, improved efficiency, and extended engine life.
• Smooth Break-In: The advanced Moly coating actively assists in the engine's break-in period, promoting optimal seating and reducing initial wear for long-term reliability.
• Complete Rebuild Solution: Each Wossner piston kit includes a high-quality piston, durable nitride-coated steel and cast rings, a robust wrist pin, and secure clips, offering all necessary components for a comprehensive engine refresh.
• Precision Fitment: Engineered for 125cc 4-stroke engines with a 54.50 mm bore and available as a +0.50 mm oversize, providing a precise fit for various makes and models.

Technical Specifications

• Model: Pro Series
• Engine Type: 4-Stroke
• Displacement: 125 cc
• Bore Size: 54.50 mm
• Piston Oversize: +0.50 mm
• Piston Diameter: 54.44 mm
• Compression Ratio: 11.0:1
• Piston Material: Forged Aluminum Alloy
• Skirt Coating: Molybdenum Disulphite (Moly)
• Ring Material: Nitride Coated Steel, Cast
• Kit Contents: Piston, Rings, Pin, Clips