Yamaha WR 250 F (CG 30) [2008-2014] - forged pistons

PROX forged pistons for Yamaha WR 250 F

The PROX forged piston is designed for the Yamaha WR 250 F (CG 30) from the 2008-2014 model year range. Its production as a forged aluminum piston combines the specified technical features with a design aimed at reliable operation.

Function and execution

The piston is forged from a special alloy. This reduces friction, which supports reliable use in the engine. The design as a hollow piston with 5 valve pockets is specifically recorded in the technical data of this piston.

Technical data

• Brand: PROX
• Piston Type: Forged
• Material: aluminum
• Piston compression: standard
• Diameter Ø: 76.95 mm
• Letter oversize: A
• Oversize: STD
• Rings Quantity: Set
• Stroke: 4T
• Specificity: hollow piston / 5 valve pockets

Vehicle assignment

The forged piston fits the Yamaha WR 250 F (CG 30), built between 2008 and 2014. The assignment refers to this vehicle and this complete year of manufacture.

Selection guide

Before ordering, compare in particular the piston diameter of 76.95 mm and the information “Letter Oversize: A” and “Oversize: STD” with the required engine size. The standard piston compression and the version for 4T support a targeted selection for the intended engine.