Pivot Works Wheel Collar KitsGeneration of wheel collars with the Pivot Works Watertight Wheel Collar Kit. Unlike standard wheel collars which allow water and debris to pass between the collar and the axle, thus rusting the axle and wheel bearing; the Pivot Works Watertight Wheel Collars, using an internal o ring, effectively block the moisture and prevent oxidation to the internals of your wheels. Each complete Pivot Works Watertight Wheel Collar Kit includes the watertight