Adjusting the centering collar

Brake discs, belt pulleys and sprockets are centered on the hub via the inner diameter. Depending on the wheel bearing used, there are two options for wide wheel hubs on Harley-Davidson motorcycles: 50 mm and 56 mm. With the appropriate adapter ring can be used on hubs up to 1999 with the smaller centering collar newer and custom brake discs, pulleys and sprockets with larger diameters.