The wheels are all of a hub-piloted design. "Hub-piloted" refers to the way that the rim trues (centers) itself on the hub by the use of hub pads. A hub pad (1) is the cast and machined ears of the hub (3) that comes into contact with the rim (5,6) during installation. The wheel is attached to the hub by two-piece flange nuts (7).

The wheels are made of aluminum or steel. The steel type wheel utilizes a two-piece steel construction (5,6), making the wheel and the rim an integral unit. The aluminum wheel is a one-piece cast aluminum component.