Yamaha WR 450 F (RE 45) [2018-2020] - WÖSSNER forged pistons

WÖSSNER forged pistons for Yamaha WR 450 F

The WÖSSNER forged piston is designed as an engine component for the Yamaha WR 450 F (RE 45) from the 2018-2020 model year range. Its aluminum design and forged design combine the essential product features for use in the upper engine range.

Design and piston geometry

The piston crown is 3D shaped. The piston diameter is Ø 96.96 mm, while the specified bore diameter is 97.00 mm. The piston is marked with the oversized letter A and the marking STD. This information supports targeted selection based on the existing engine data.

• Material: aluminum
• Piston type: forged
• Diameter Ø: 96.96 mm
• Bore diameter: 97.00 mm
• Oversize letter: A
• Oversize: STD
• Compression ratio: 12.5:1
• Number of rings: 2
• Specificity: 3D shaped crown

Vehicle assignment

The forged piston is assigned to the Yamaha WR 450 F (RE 45), built between 2018 and 2020. When making the selection, the vehicle type, the complete year of manufacture and the specified diameter and bore values ​​must be taken into account in particular.

Technical characteristics

The compression ratio is 12.5:1. Together with the forged aluminum piston, the 3D-shaped crown and the 2-ring design, this results in a clearly defined technical configuration for this vehicle model.