DirtyBike Surron Ultra Bee Primary Drive RK MXZ Race 420 Replacement Chain
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Replacement RK MXU chain for all DirtyBike Ultra Bee 420 Primary Chain Drive systems
The RK MXZ non-sealed 420 chain, a direct replacement for all DirtyBike Ultra Bee 420 primary belt to chain conversion kits. Without seals there is less drag in each link, which is why it is the race choice: more of what the motor makes reaches the rear wheel.
The trade is service life. A non-sealed chain needs cleaning and lubing far more often, and it will stretch faster in grit than the sealed MXU version DirtyBike lists alongside it. Chain pitch is 420, chain by RK, sold as a single item at 0.81 lb shipping weight. Verified against the Surron Ultra Bee.
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Fits the Surron Ultra Bee.
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