Prox Forged Piston Piston kitRef : PRO00579A / 1095558003

PROX Forged Piston – Manufacturer Ref. 01.2414.C

Designed for motocross practices, this PROX forged piston combines proven materials and processes to offer a good balance of performance and reliability. Machined from a specific aluminum alloy and produced using a forging process widely used by manufacturers, it is aimed at riders looking for a replacement part equivalent to the original for their high-revving engine.

• Piston diameter: Ø 76.97 mm (oversize letter C)
• Compression: standard 13.5:1
• Material: forged aluminum
• Patented surface treatment to reduce friction in the cylinder
• Number of segments: kit (segments included)
• Ideal as a direct replacement for original equipment

This piston is particularly suitable for 250 cc motocross bikes that fall under this diameter and reference. It integrates into an engine where high RPM stability and consistent combustion are sought, while also facilitating break-in due to the surface treatment. During installation, adhere to the specified clearances and manufacturer recommendations to ensure optimal longevity of the cylinder and segments.

Common Applications: YAMAHA WR 250 F (RE25, CG36), YAMAHA YZ 250 F (CG34) — always verify the reference and tolerances before installation.