YAMAHA WR 250 F [2020-2024] - forged pistons

PROX forged pistons for the YAMAHA WR 250 F 2020-2024

The PROX forged piston is designed as a replacement piston for the YAMAHA WR 250 F from the full 2020-2024 model year range. Its forged aluminum design combines the specified piston shape with standard compression and OEM-equivalent quality.

Function and execution

The aluminum alloy used is designed to reduce friction and support piston reliability. The flat crown with raised top part and 4 valve pockets form the fixed geometry of this piston. As a 4T version, the component is intended for the specified four-stroke use.

Technical data

• Brand: PROX
• Piston Type: Forged
• Material: aluminum
• Piston compression: standard
• Diameter Ø: 76.96 mm
• Letter oversize: B
• Oversize: +0.01
• Rings Quantity: Set
• Stroke: 4T
• Piston shape: Flat crown with raised top / 4 valve pockets

Vehicle assignment

Suitable for: YAMAHA WR 250 F, built between 2020 and 2024. The assignment refers to this model and the complete year range mentioned.

Selection note

The diameter of 76.96 mm, the oversize letter B and the oversize information +0.01 are particularly important for the selection. The standard compression and the 4T version complement the technical specifications of the PROX forged piston.