The R76ATR-L is a brilliant time saver. Its tilt-back tower allows you to operate different tire-and-wheel combos without adjusting the duck head, and the swing-arm design with tower assist ensure stiff sidewalls are never a problem. RimGuard clamps extend 10 in. - 30 in. for maximum versatility. Low Voltage Model Tilt-Tower Tire Changer Design with Power Assist. When it comes to your tire repair business, Ranger's R76ATR has everything you need for safer, faster tire changes, even when working with tricky aluminum wheels. Extraordinarily easy-to-use, adjustable RimGuard clamps, and the tilt-back tower saves significant time when loading a new set of wheels-no more adjusting the duck head to match each wheel's diameter. The assist tower helps change low-profile and run-flats (anything with a stiff sidewall), and it holds the bead in the drop-center, protecting the tire. A centering cone further assists with external clamping, and a specialized saucer/roller combo offers yet another line of defense against stubborn beads. Material: Metal.