Designed and recommended for use with stock motors to reduce rotating mass, reduce weight, also to enhance energy transfer from engine with no power loss. With the Slipper Eliminator, motor performance is moved right to the vehicle, and there is also no requirement for clutch & slipper adjustment. Trading the spur gear is extremely very swift & effortless. Slipper Eliminator is an immediate replacement the slipper clutch set. Compatible with LCG gearboxes. Fits only and quick top shaft 324116. Set includes aluminum spur gear hub, and 72T spur gear (an optional 69T spur gear can be acquired).