Prox

ProX is a leading manufacturer of high-performance motorcycle engine components, offering a comprehensive range of parts engineered to meet or exceed OEM specifications. Their extensive lineup includes piston kits, ring sets, connecting rod kits and crankshaft bearing kits designed for precision fitment and long-lasting durability. Built for motocross, enduro and off-road applications, ProX components are manufactured using advanced materials and strict quality control standards to ensure consistent performance under extreme riding conditions. These motorcycle engine rebuild parts are trusted by riders and mechanics worldwide for restoring power, improving reliability and maintaining peak engine efficiency.

Beyond internal engine components, ProX provides a wide selection of gasket kits, top end gasket sets and water pump rebuild kits that support complete engine overhauls and routine maintenance. Their gasket solutions are designed to deliver proper sealing and leak prevention across high-temperature engine environments, while water pump kits ensure optimal cooling system performance. In addition, ProX offers valve and spring kits, cam chains and valve shims, enabling precise engine tuning and valve train reliability. These components are essential for maintaining engine timing, compression and overall performance in demanding off-road and racing conditions.

ProX also supports chassis and braking system maintenance with products like wheel spacer kits, brake caliper rebuild kits and master cylinder rebuild kits, ensuring complete mechanical reliability beyond the engine. Their clutch components, including clutch plate sets and inner clutch hubs, are engineered to handle high torque loads while maintaining smooth engagement and durability. Whether performing a full engine rebuild or upgrading specific components, ProX delivers a complete solution for riders seeking motorcycle performance parts, engine rebuild kits and off-road racing components that enhance durability, precision and long-term performance.