Yamaha YZ 450 F (CJ 21) [2016-2017] - WÖSSNER forged pistons

WÖSSNER forged pistons for Yamaha YZ 450 F (CJ 21)

The WÖSSNER forged piston is designed for the Yamaha YZ 450 F (CJ 21) from the entire 2016-2017 model year range. The version with a 3D shaped crown and a compression ratio of 12.5:1 is designed for selection within this vehicle classification based on the specified piston dimensions.

Design and technical data

• Piston Type: Forged
• Material: aluminum
• Diameter Ø: 96.97 mm
• Letter oversize: B
• Oversize: +0.01
• Bore diameter: 97.01mm
• Compression ratio: 12.5:1
• Number of piston rings: 2
• Specificity: 3D shaped crown

Vehicle assignment

The piston is assigned to the Yamaha YZ 450 F (CJ 21), built in 2016-2017. In addition to the model and year of manufacture, the specified diameter of 96.97 mm, the oversize letter B, the oversize information +0.01 and the bore diameter of 97.01 mm are particularly relevant for the selection.

Selection note

Before ordering, check the listed dimensions and the B marking to ensure that the selected piston version matches the intended engine data. The 3D-shaped crown and the compression ratio of 12.5:1 characterize this specific WÖSSNER version.