"This Ranger Products Super-Duty Truck Wheel Balancer with Drive-Check handles everything from bus, truck and OTR wheels to automobile and light truck wheels. Commercial-grade features include a full menu of dynamic, static and performance alloy settings to deliver fast, easy results. Extra lift gate fee may apply. Calipers Standard, Weight lbs. 825, Cycle Time sec. 7-10, Display Type LED, Phase Single, Shaft Type 40mm precision-machined hardened steel, Includes Fully equipped multipiece wheel mounting adapter kit, Auto On/Off Standard, Motor 380 50/60Hz 3-phase, HP 1.5, Brake Type Auto-stop function features electro-magnetic pulse with pneumatic braking, Common Usage Truck wheel balancer, Wheel Diameter in. 50, Drive System Ribbed nylon fiber-reinforced drive belt, Balancing Modes 1 dynamic / 1 static / 3 alloy, Centering Cones qty 6, Balancing Speed 220 RPM, Max. Rim Width 30, Max. RPM 220, Tire Diameter in. 30, Wheel Width in. 2-20, Resolution 7 gram/.25 oz., Working Temperature -5C/27F-50C/82F. Drive-Check technology provides accuracy for vibration-free results Automatic weight optimization calculates minimum weight need to achieve optimum balance User-friendly operation with touch pad display panel Brightly displayed LED indicators mark wheel weight amount and placement Pneumatic braking system Robust 380V 3-phase drive motor is powerful enough to get heavy wheels spinning quickly Multi-directional quartz piezoelectric force sensors Handles tires up to 52in. diameter and 20in.W and up to 30in. diameter rims Includes fully equipped multipiece wheel mounting adapter kit with quick-chuck kit, adjustable flange plate and stud kit and standard cone kit"