420 Primary Drive RK420 MXU Sealed Replacement Chain | Surron LBX | E Ride PRO SS
Replacement Sealed RK MXU Chain for DirtyBike 420 Primary Chain Drive
RK MXU offers very thin U-rings to provide a narrow chain for a longer lasting drive system.
Direct replacement for all Light Bee and E Ride Pro DirtyBike 420 primary belt to chain conversion kits.
