Valvetrain

ProX Valvetrain Components are engineered to deliver precision, durability, and optimal engine performance for motocross, off-road motorcycles, dirt bikes, and ATVs. Designed to meet or exceed OEM specifications, our comprehensive lineup includes valves, valve kits, valve stem seals, valve shims, and timing chains, all manufactured from high-quality materials for exceptional wear resistance and longevity. Whether you’re performing routine maintenance, a full engine rebuild, or upgrading for high-performance applications, ProX valvetrain components ensure precise valve timing, reduced friction, and maximum reliability.

With strict quality control and advanced manufacturing techniques, ProX valvetrain parts provide seamless fitment, efficient power delivery, and extended engine life. From heat-treated stainless steel valves to precision-ground valve shims and heavy-duty cam chains, every component is built to withstand high-RPM and extreme riding conditions. Trusted by mechanics, racers, and performance enthusiasts worldwide, ProX valvetrain components keep your engine running at peak efficiency for maximum power and longevity.