Wossner Pro Series Piston Kit for 250cc 4-Stroke 78.00mm Bore

Elevate your engine's performance and reliability with the Wossner Pro Series 250cc 4-Stroke Piston Kit, engineered for demanding motorcycle applications. This high-performance kit, featuring a precise 78.00 mm bore, delivers exceptional durability and power output for your 250cc 4-stroke engine.

Description

Designed for the ultimate riding experience, the Wossner Pro Series piston kit is a testament to superior engineering and material science. Each forged motorcycle piston is meticulously crafted from aerospace-grade aluminum alloy, ensuring unparalleled strength and heat resistance under extreme conditions. The optimized machining process achieves an ideal balance of lightness and structural integrity, particularly in critical areas like the crown and skirt wall cross-section. This results in reduced reciprocating mass for quicker throttle response and sustained power. The piston features a high 14.5:1 compression ratio, further enhancing combustion efficiency and overall engine performance. A permanent Molybdenum Disulphite (Moly) skirt coating significantly reduces friction and piston rock, contributing to quieter operation, improved longevity, and aiding in the critical break-in period. This 78.00 mm bore piston is a standard size A fitment, making it an ideal replacement or performance upgrade. The kit comes complete with a dual-ring piston, nitride-coated steel and cast rings, a piston pin, and retaining clips, providing everything needed for a comprehensive top-end refresh.

Features & Highlights

• Aerospace-Grade Forged Aluminum: Constructed from premium aerospace-grade aluminum alloy, these pistons offer superior strength, durability, and resistance to high temperatures and pressures compared to standard cast pistons.
• Advanced Molybdenum Disulphite Skirt Coating: Each piston skirt is treated with a permanent Moly coating, drastically reducing friction and piston rock, leading to quieter operation, extended engine life, and improved break-in efficiency.
• Optimized Lightweight Design: Precision machining ensures the piston is lightweight for quicker engine response, while maintaining robust strength in crucial areas like the crown and skirt for maximum reliability.
• Enhanced Compression Ratio: Engineered with a 14.5:1 compression ratio, this Wossner Pro Series piston optimizes combustion, delivering a noticeable boost in power and overall engine performance for your 250cc 4-stroke.
• Complete Dual Ring Piston Kit: This comprehensive kit includes the high-quality, dual-ring piston, durable nitride-coated steel and cast rings, a sturdy piston pin, and secure retaining clips, ensuring a complete and reliable installation.

Technical Specifications

• Product Name: Piston Kit
• Brand: Wossner
• Model: Pro Series
• Engine Type: 4-Stroke
• Displacement: 250 cc
• Piston Type: Dual Ring
• Piston Size: Standard Size A
• Bore Size: 78.00 mm
• Piston Diameter: 77.96 mm
• Compression Ratio: 14.5:1
• Piston Material: Forged Aluminum Alloy
• Skirt Coating: Molybdenum Disulphite
• Ring Material: Nitride Coated Steel, Cast
• Units: Kit

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