
This part being universal, it may require adaptations
MXZ Series Transmission Chain RK – Manufacturer Ref. 420MXZ-140-CL
Specifically designed for enduro and motocross, this reinforced 420 chain from the MXZ series by RK is intended for small displacement engines (commonly used on 125 to 150 cm³). Designed for off-road conditions, it combines heat-treated components and a chrome-plated finish for mechanical performance suited to the demands of off-road riding.
RK chains are pre-tensioned and pre-stretched in the factory, allowing for a more even load distribution and reducing break-in operations after installation. The components undergo shot peening and heat treatment to enhance wear resistance — features appreciated by demanding motocross and enduro riders.
Whether for restoring a competition machine or reinforcing the transmission of a machine intended to tackle trails and jumps, the 420MXZ-140-CL remains a solid option well-suited for off-road practices.