Yamaha YZ 250 F (CG 25) [2006] - forged pistons

PROX forged pistons for Yamaha YZ 250 F (CG 25), built in 2006

The PROX forged piston is intended for the Yamaha YZ 250 F (CG 25) built in 2006. Its forged aluminum design and special alloy support low-friction function. As a result, the piston is designed for high reliability in engine operation.

Function and execution

Piston compression is standard. The hollow piston has 5 valve pockets and is specified for a 4T engine. These features make it easier to select a suitable piston based on the existing engine data.

Technical data

• Brand: PROX
• Piston Type: Forged
• Material: aluminum
• Piston compression: standard
• Diameter Ø: 76.97 mm
• Letter oversize: C
• Oversize: +0.02
• Rings Quantity: Set
• Stroke: 4T
• Specificity: hollow piston / 5 valve pockets

Vehicle assignment

The forged piston is assigned for:

• Yamaha YZ 250 F (CG 25), built in 2006

Selection note

In particular, the diameter of 76.97 mm, the oversize value +0.02 and the letter C must be taken into account for the assignment. The standard compression and the hollow piston design with 5 valve pockets complement the technical characteristics for selection.