Yamaha WR 450 F (CJ 12) [2007] - WÖSSNER forged pistons

WÖSSNER forged pistons for the Yamaha WR 450 F (CJ 12)

The WÖSSNER forged piston is designed for the Yamaha WR 450 F (CJ 12) built in 2007. The design combines a forged piston type with aluminum as the specified material and thus offers a clearly defined basis for selecting the appropriate piston.

Technical features

• Material: aluminum
• Piston Type: Forged
• Diameter Ø: 94.96 mm
• Letter oversize: A
• Oversize: STD
• Bore diameter: 95.00 mm
• Compression ratio: 12.3:1
• Number of rings: 2

Vehicle assignment

The piston is assigned to the Yamaha WR 450 F (CJ 12), built in 2007. This vehicle assignment supports targeted selection based on model, type designation and year of manufacture.

Selection note

The diameter of 94.96 mm, the bore diameter of 95.00 mm and the markings “A” for the oversize and “STD” for the oversize value are particularly relevant for identifying the appropriate version. The compression ratio is 12.3:1. The design with two rings complements the technical characteristics of the forged piston and enables a direct comparison with the vehicle requirements.