The pad height is on a cam, and more pad adjustment looks like it is available, if needed (doesn't look bad to me). Those dia compe calipers are notoriously small, yet when the clearance problem is at the bolt, the size of the caliper is not necessarily the problem. If you replace the caliper, make sure the new one provides more clearance at the bolt itself, as a caliper that provides more tire clearance at the arms does not necessarily provide more clearance at the bolt. Pretty calipers, I vote for finding a shorter 25mm tire.