
The PROX forged piston (manufacturer reference 01.6387.C) is aimed at motocross riders looking for a robust engine part suitable for oversized bores. Made from aluminum and crafted from a specific alloy, this piston is designed to minimize friction and provide durability suited to the demands of the tracks.
Its flat top and specific machining for reed valves make it a relevant choice for 300 cm3 motocross engines from 2017. This piston is particularly suitable for the models listed below, without guarantee of completeness:
Installation and break-in must adhere to the manufacturer's recommendations: check the bore, the thickness of the rings, and the piston/cylinder clearance before installation. This part is intended for off-road use (motocross/enduro) where durability and precision fit are essential.