WOSSNER offers you a high-performance 4-stroke piston kit designed for optimum precision fit and maximum combustion efficiency. Manufactured with high-quality materials and advanced manufacturing technology, it reduces internal friction, limits compression losses and improves engine stability throughout the rev range. Its design also provides better thermal management to reduce the risk of overheating and premature wear. Ideal for sporty or demanding use, it helps extend engine life while maintaining consistent, reliable performance.

Fits on :

YAMAHA WR 250 F 2021

YAMAHA WR 250 F 2020

YAMAHA YZ 250 F 2020

YAMAHA YZ 250 F 2019

YAMAHA YZ 250 FX 2020