Description:

100% brand-new,all parts are tested and quality controlled prior to shipment. Works with Gas Engine Crank Shafts to enlarge the crank diameter to fit pulleys, gear boxes etc.. Alters motors with a different diameter shaft;Alters pulleys for a different speed or belt. Reduces the necessity of buying a new motor or pulley to maintain existing components and speed/power requirements.. Adapts larger wheel bores to smaller axels.