RK 420MXZ Racing Chain

Unleash the full potential of your motocross machine with the RK 420MXZ Heavy Duty Chain, the ultimate transmission upgrade for serious racers and dedicated off-road enthusiasts. Specifically engineered for the extreme demands of competitive MX and Supercross racing, this chain represents the pinnacle of lightweight performance and uncompromising strength.Designed by the world-renowned experts at RK, the 420MXZ is a masterpiece of advanced engineering, created to deliver a distinct competitive advantage. Its exceptionally lightweight construction is a key feature, significantly reducing unsprung weight and rotational mass. This translates directly into more efficient power transfer, allowing your engine´s horsepower to be delivered to the rear wheel with minimal loss. The result is sharper throttle response, explosive acceleration out of the gate and corners, and a tangible improvement in overall lap times.The Heavy Duty designation is a testament to its incredible durability. Built to