The ATD Tools Wheel Balancer, No. ATDWB, is a high performing, self-calibrating wheel balancer with three centering cones. This balancer offers static balancing, and comes with hood included. A hummer speed nut and caliper come standard. The ATDWB has a max wheel diameter of 39", rim width of 1.5" to 20", rim diameter of 10" to 24" and wheel weight capacity of 150 lbs.