The PROX forged piston (manufacturer reference: 01.6419.A) is aimed at motorcyclists who demand reliability from their engine. Machined from a specific alloy and produced by forging, it offers enhanced dimensional stability and strength compared to a traditional cast piston, while minimizing internal friction thanks to its meticulous finish.

Technical specifications:

• Diameter: Ø 94.940 mm (Ø 94.94 mm)
• Oversize letter: A (oversize)
• Compression: Standard
• Material: Forged Aluminum
• Number of segments: Kit (included)

Designed for the refurbishment or maintenance of high-displacement four-stroke engines, this PROX piston fits into cross and roadster engines where robustness and assembly precision are paramount. Its oversize "A" allows for bore adjustment during a re-boring in accordance with manufacturer recommendations.

Common compatibilities:

• TM RACING SMX 450 F (2013 - 450 cm3)
• TM RACING MX 450 F (2011 - 450 cm3)
• TM RACING EN 450 F (2011 - 450 cm3)

Always check engine specifications and machining before installation. The piston is supplied in a kit with its segments for complete installation.