
The PROX cast piston (ref. 01.2224.A) is aimed at motocross riders looking for a reliable original part for their 125 engine. Machined from a specific aluminium alloy, this piston is designed to limit friction and ensure durability suited to the demands of off-road riding. Its design incorporates useful details for amateur competition: domed head, optimised intake passage, and skirt turned for good stability in the bore.
The Mos2 treatment of the skirt helps reduce friction inside the cylinder, while the two lubrication holes promote an oil film over the exhaust area. Ideal piston for the refurbishment or periodic maintenance of 125 cm3 motocross engines.
Compatibility (examples):