Hello, I have measured in peace and in the course of several days, two 21 x 2.15 front wheels (original spoke / Big Spoke). The reason is that since the assembly of the Big-Spoke front wheel, the brake hums between 30 km/h and 0 km/h disgustingly loud. The brake flange of the Big Spoke lies 5mm further inside and the brake caliper is adapted for this over 5mm Shims. By this measure I wanted to get some clarity about the dimensions. Unfortunately, complete wheels can be very bad and partially e not measured at all. I then circled it over construction. Image attached. Question: Where can one find exact information of the respective Harley type about the distances of the brake discs to the vehicle center ? That the hubs / rims are pushed at the center is probably the normal case. In the specifications of purchaseable wheels one finds quite different dimensional covers. The hub width e.g. is not important – important however the distance of the bearing outer surfaces. Important and not always present is the measure hub itte / brake flange. Here it is also not used so precisely… a la “ca. 80mm”