Wossner high-compression forged pistons are engineered for strength and optimal thermal conductivity, promoting efficient heat transfer and even load distribution under expansion. This piston features a 97.00mm bore (96.95mm actual size) and is designed for Yamaha YZ450F models with a 13.6:1 compression ratio.

Features

• Forged construction for strength and durability


• Elliptical design for even expansion and load distribution


• High-compression specification


• Made in Germany

Specifications

• Bore Size: 97.00mm (actual 96.95mm)


• Compression Ratio: 13.6:1

Cross-Reference OEM Part Numbers

• BR9-11631-00-00

Vehicle Fitments

• Yamaha YZ450F 2018–2019