The Coats 90X Rim Clamp Tire Changer from Hennessy Industries is designed to deliver fast floor-to-floor cycle time with the combination of the two-speed electric motor and Coats-exclusive leverless power Hybrid Duckhead. The 90X is capable of the broadest range of tire and wheel combinations, according to the company. The articulating Robo-Arm and the right side RoboRoller simplify even the most difficult tire and wheel assemblies.