Ok, now I more confussed. You're saying that the less BS, the more likely of contact with the calipers. I.E. 3.75" of bs will rub but 5" won't. That doesn't make sense to me. A wheel with 3.75 bs sticks out further from the axle flange, thus reducing the likelyhood of the tires rubbing on control arms and sway bars during a turn. Also the inner portion of the wheel has an inward taper. Widest at the edge of the wheel and narrowest at the wheel center hub. It is because the rotor on the jk is larger than the rotor on the tj and the caliper is outside of the rotor. Therefore, if the caliper has to set deeper into the wheel, the more likely of caliper rub. On the wheel with 3.75 bs, the caliper is closer to the edge where the wheel is widest. With the 5" bs wheel, the caliper is set deeper into the wheel where the internal diameter if the wheel is narrower. Am I wrong here?