- New



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 enables better thermal management to reduce the risk of overheating and premature wear. Ideal for competition, enduro or demanding off-road use, it helps extend engine life while maintaining consistent, reliable performance.
Fits on :
GAS GAS EC 450 F 2015
GAS GAS EC 450 F 2014
GAS GAS EC 450 F 2013
YAMAHA WR 450 F 2009
YAMAHA WR 450 F 2009
YAMAHA WR 450 F 2008
YAMAHA WR 450 F 2008
YAMAHA WR 450 F 2007
YAMAHA WR 450 F 2007
YAMAHA WR 450 F 2006
YAMAHA WR 450 F 2006
YAMAHA YZ 450 F 2009
YAMAHA YZ 450 F 2008
YAMAHA YZ 450 F 2007
YAMAHA YZ 450 F 2006
YAMAHA YZ 450 F 2006
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