Primary Drive RK MXZ Race 420 Replacement Chain | Surron Ultra Bee brake lever If you load your bike

If you load your bike with heavy cargo or need an extra bit of traction for an extended haul

there’s really no competition

This kit has a threaded rod that runs the full length of the steering tube bolt compressing the lower triple clamp to the upper triple clamp keeping your head bearings tight

Maximum Wheel Size (in) : 29

MOTOR POWER: 5KW RATED / 12KW PEAK POWER

Primary Drive RK MXZ Race 420 Replacement Chain | Surron Ultra Bee brake lever If you load your bikeReplacement RK MXU chain for all DirtyBike Ultra Bee 420 Primary Chain Drive systems Super high quality non sealed RK MXZ chain is the best for racing. It has the lowest drag for the most power output. Direct replacement for all DirtyBike Ultra Bee 420 primary belt to chain conversion kits.