Prox Forged Piston kitRef : PRO00288A / 1095536002

PROX Forged Piston - Manufacturer Ref. 01.2409.B

Designed for high RPMs in motocross, this PROX forged piston is made from a specific aluminum alloy. Its design works to limit friction while remaining suitable for competitive/recreational use on prepared cylinders or as a replacement during an engine overhaul. Oversized piston (letter B) delivered in a kit with rings for a complete restoration.

• Brand: PROX
• Reference: 01.2409.B
• Diameter: Ø 76.96 mm
• Compression: Standard
• Material: Forged aluminum
• Number of rings: Kit (rings included)
• Category: Piston - Universal: Motocross

Compatible with several generations of YAMAHA YZ 250 F (notably CG33 2012/2013 and CG27 2009), this piston is suitable for 250 cc engines requiring an oversize B. Before installation, check the bore, piston/cylinder clearance, and follow the manufacturer's recommendations for break-in and tightening of the upper engine components.

If you are overhauling a motocross top-end, this PROX piston offers a robust replacement part ready for installation as part of a serious service. Check vehicle compatibility and tolerances before ordering.