I'm getting ready to narrow a rear and there isn't much space. If i set the caliper so that it is at about 10o'clock in relation to the rotor i'll have clearance for the 4 link bracket and room for the coilover. These calipers are typically set at 12o'clock. I don't see any problem rolling them around as long as the bleeder is at the highest point but i thought i'd ask the question. Thanks, oj