Wossner Piston Yamaha YZ450F 03-04 / WR450F 03-11 (Pro) (Hi-Comp) SIZE_39 EU Strongest tool of its type

Strongest tool of its type on the market

Designed for quick foam or filter servicing after initial install

Top European racers and FIM World Champions rely on Wossner for only the best pistons

Ergonomically designed soft gel handles

for 1" (B size) socket arms

Wossner Piston Yamaha YZ450F 03-04 / WR450F 03-11 (Pro) (Hi-Comp) SIZE_39 EU Strongest tool of its typeWossner is Germany's finest aftermarket forged piston and rod manufacturer and have over 25 years of experience in the high performance racing industry. Top European racers and FIM World Champions rely on Wossner for only the best pistons, rods and customer service. Features In house designed and manufactured; all forgings are produced in Wossner's company owned forging operation 4 stroke pistons are made using a double bridged forging design