Ranger R745 Swing Arm Tire Machine 21" Capacity - Low Voltage ModelThe Ranger R745 is a basic tire changer for entry level tire and wheel service. It's ideal for performing rapid wheel service on most types of passenger wheels, as well as spare tires and trailer tires. You know what you need. And if what you need isn't that complicated, the Ranger R745 is the only tire changer you may ever put in your shop. Ideal for gas stations, roadside tire shops, small personal operations or as a backup for your more specialized