Wossner Piston Yamaha YZ450F 03-04 / WR450F 03-11 (Pro) (Hi-Comp) Year_2025 Longer life and higher heat

Longer life and higher heat resistance than the CK series

so you can fasten your backpack to the sissy bar to give your shoulders a break on long rides

Please Note: RX Gasket is not included and must be purchased separately Compliant to the Australian Safety Standard AS/NZS 1337

Replaceable 30 amp Tyco/Bosch micro relay

Wossner Piston Yamaha YZ450F 03-04 / WR450F 03-11 (Pro) (Hi-Comp) Year_2025 Longer life and higher heatWossner 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