PROX parts are manufactured in Japan by reputable Original Equipment Manufacturers. The latest state-of-the-art CNC equipment, machines PROX Racing Parts to exact specifications and high quality standards. PROX is specialized in pistons, connecting rods; also you will find a wide range of valves, gaskets, clutch parts and bearings. Founded in 1975 PROX B.V. work together with the manufacturer for more than 20 years and can look back on 100% satisfied customers.