Wossner Pro Series Piston Kit for 250cc 4-Stroke

Upgrade your motorcycle's engine performance with the high-quality Wossner 250cc 4-Stroke Piston Kit. Engineered for demanding conditions, this Pro Series kit delivers enhanced durability and power for your ride.

Description

Unleash the full potential of your 250cc 4-stroke engine with the Wossner Pro Series Piston Kit. This premium kit is meticulously forged from aerospace-grade aluminum alloy, ensuring exceptional strength and heat resistance under the most extreme operating temperatures and pressures. Designed with a precise 76.01 mm bore size and a high 13.0:1 compression ratio, this piston is engineered to maximize horsepower and torque output, giving you a noticeable edge in performance. The dual ring design provides superior sealing and stability, contributing to consistent power delivery and reduced blow-by.

Every Wossner piston features an advanced Molybdenum Disulphite skirt coating. This permanent, low-friction layer significantly reduces wear, minimizes piston rock, and ensures quieter operation, while also aiding in a smoother, more efficient break-in process. Optimized machining processes result in a lightweight piston without compromising structural integrity, particularly in critical areas like the crown and skirt wall cross-section. This standard size B piston kit (75.97 mm diameter) includes everything you need for a comprehensive replacement: the piston, high-quality nitride-coated steel rings, a durable wrist pin, and secure circlips, making it an ideal choice for enthusiasts and professionals seeking a reliable and performance-driven engine rebuild.

Features & Highlights

• Aerospace-Grade Forging: Forged from premium aerospace aluminum alloy, ensuring superior strength, durability, and resistance to extreme engine stress and high temperatures.
• Advanced Moly Skirt Coating: Features a permanent Molybdenum Disulphite skirt coating that drastically reduces friction, minimizes wear, and promotes quieter piston operation and an optimized break-in period.
• Optimized Lightweight Design: Precision machining balances reduced weight with maintained strength in critical areas like the piston crown and skirt wall, enhancing engine responsiveness without sacrificing reliability.
• High Compression Performance: Engineered with a high 13.0:1 compression ratio to maximize power and torque output, delivering an aggressive and responsive powerband for competitive riding.
• Pro Series Dual Ring System: Utilizes a robust dual ring configuration with nitride-coated steel rings for excellent sealing, consistent performance, and extended engine life.
• Complete Kit for Easy Installation: Includes a high-quality piston, durable rings, wrist pin, and circlips, providing all necessary components for a straightforward and comprehensive engine overhaul.

Important to Know

• Professional installation is recommended for optimal performance and safety.
• This kit is a Standard Size B piston. Oversize pistons are available separately for specific applications.
• Additional engine components such as gaskets, bearings, and cylinder honing tools are not included and must be purchased separately.