
PROX forged piston designed for motocross, intended for 300 cc engines. Machined from a specific aluminum alloy, this piston aims to minimize friction while providing the robustness necessary for off-road demands. Its design caters to the needs of riders seeking reliability and precision in assembly as a replacement for the original.
Designed to fit into the cylinder heads of motocross bikes, this piston features a flat head suitable for configurations requiring a compact combustion chamber layout and clearances for the valves thanks to the reed machining. Ideal as a replacement for the models listed below or for rebuilds of 300 cc engines.