DID 520 MX Series (520MX) is a non-sealed drive chain engineered for motocross, built to take the punishment of hard off-road racing. With a clip master link and very high tensile strength, it’s a trusted choice for serious riders.
The DID 520 MX Series (520MX) chain is purpose-built for motocross riders who demand maximum strength from a non-sealed chain. Designed to handle the repeated impacts and shock loads of aggressive off-road riding, it delivers reliable power transfer and durability where it matters most—on the track and in race conditions.
Because it combines very high tensile strength with a lightweight non-sealed design, it’s a popular go-to option across multiple racing disciplines, especially in the 450 class. If you want a chain that stands up to tough starts, hard landings, and relentless roost-filled laps, this is a proven upgrade trusted by teams and champions.
