Designed and recommended for use with stock engines to lessen rotating mass, reduce fat, and also to enhance energy transfer from engine without power loss. Utilising the Slipper Eliminator, motor performance is moved straight to the automobile, and there is also no reliance on clutch & slipper modification. Trading the spur gear is extremely really fast & effortless. Slipper Eliminator is an instantaneous replacement the slipper clutch set. Suitable for LCG gearboxes. Fits just and fast top shaft 324116. Set includes aluminum spur gear hub, and 72T spur gear (an optional 69T spur gear can be had).