Speed Selector designs and manufactures mechanical variable speed pulleys, drives and sheaves. Their pulleys last longer than competitor brands and they feature instant shipment from a large inventory. Speed Selector products are proudly made in the USA. They also offer a wide variety of standard drive packages ranging from fractional through 150 HP capacity, and up to a 10:1 output speed ratio, and specialize in custom designed pulleys, sheaves and accessories in both high and low volumes.