Axle Tuning Plugs

Quick Adjustment
Supports hub and reduces flex at the axles end. Slips into the axle and is held in place by the key pegs. 
 
Tunability
Adds grip without requiring an axle change. Can be used independently on just one side of the kart to fine tune for track layout or conditions.
 
Machined
Precision machined from high quality delrin for it's stiffness and dampening characteristics.