Yamaha YZ 450 F (CJ 05) [2004] - WÖSSNER Pro Series forged pistons

WÖSSNER Pro Series forged pistons for Yamaha YZ 450 F

The WOSSNER Pro Series forged piston is intended as a forged aluminum version for the Yamaha YZ 450 F (CJ 05) built in 2004. The vehicle assignment and the specified dimensions support a targeted selection of the appropriate engine structure.

Design and technical data

• Piston type: forged
• Material: aluminum
• Piston compression: highly compressed
• Compression ratio: 13.5:1
• Diameter Ø: 94.97 mm
• Letter oversize: B
• Oversize: +0.01
• Bore diameter: 95.01mm
• Piston rings: 2

The combination of the specified piston diameter, the oversize +0.01 and the bore diameter of 95.01 mm offers concrete comparison values for the selection and testing of the intended engine tuning. The compression ratio of 13.5:1 describes the technical design of this piston.

Vehicle assignment

Suitable for Yamaha YZ 450 F (CJ 05), built in 2004. The assignment refers to this model and this complete year range.

Factual advice on selection

Before ordering, the listed dimensions, the oversize letter B and the bore diameter should be compared with the existing engine structure. This allows you to check whether the version with a diameter of 94.97 mm and +0.01 oversize is selected for the intended use.