Beta RR 350 4 T Race [2025-2026] - WÖSSNER forged pistons

WÖSSNER forged pistons for Beta RR 350 4 T Race

The WÖSSNER forged piston is designed for the Beta RR 350 4 T Race in the 2025-2026 model year range. As a forged aluminum version, it is suitable for use in 4-stroke engines and offers a defined basis for repairing the upper engine area.

Execution and function

The piston skirt has an anti-friction coating. The standard piston compression supports the use as a replacement piston with a compression design close to series production. The scope of delivery includes piston rings, circlips and the piston pin axle.

Technical data

• Material: aluminum
• Piston type: forged
• Piston compression: standard
• Diameter Ø: 87.97 mm
• Letter oversize: B
• Oversize: +0.01
• Bore diameter: 88.01mm
• Compression ratio: 13.4:1
• Rings: 2
• Stroke: 4T
• Piston skirt: anti-friction coated

Vehicle assignment

Suitable for the Beta RR 350 4 T Race, built between 2025 and 2026. Selection should be based on the specified diameter of 87.97mm, oversize +0.01 and bore diameter of 88.01mm.

Manufacturing

WÖSSNER forged pistons are manufactured in Germany by specialists in 2- and 4-stroke engine parts.