Wossner Piston Yamaha YZ450F 06-09 / WR450F 06-15 (Pro) (Hi-Comp) size:Piston B (+0.01mm) Viscosity at 40 °C: 157

Viscosity at 40 °C: 157

REAR HAND - PARK BRAKE

Heat treated and hand finished

Square-end openings that grip the spoke nipple on all 4 sides

Wossner Piston Yamaha YZ450F 06-09 / WR450F 06-15 (Pro) (Hi-Comp) size:Piston B (+0.01mm) Viscosity at 40 °C: 157Wossner 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