Yamaha WR 250 F (RE 25) [2016-2017] - WÖSSNER Pro Series forged pistons

WÖSSNER Pro Series forged pistons for Yamaha WR 250 F

The WÖSSNER Pro Series forged piston is assigned to the Yamaha WR 250 F (RE 25) in the entire 2016-2017 model year range. As a forged aluminum piston, it is intended for use in the upper engine range and offers clearly defined dimensions for selection and tuning.

Technical features

• Material: aluminum
• Piston Type: Forged
• Specificity: Forged double bridge
• Diameter Ø: 76.95 mm
• Bore diameter: 77.00 mm
• Letter oversize: A
• Oversize: STD
• Compression ratio: 13.7:1
• Number of piston rings: 2

Vehicle assignment

The piston is assigned to the Yamaha WR 250 F (RE 25), built in 2016-2017. This vehicle assignment supports targeted selection based on model, year of manufacture and the specified piston dimensions.

Selection Notes

The piston diameter of 76.95 mm, the bore diameter of 77.00 mm, the letter of the oversize A and the marking STD are particularly relevant for the technical classification. The compression ratio is 13.7:1. The version with a forged double bridge and two piston rings complements the technical product features of the WÖSSNER piston.