A wear detection probe for detection of wear of a braking member is mounted in or adjacent to the braking member. The wear detection probe includes a holder having a detection wire in a wiring path. The detection wire has a folded portion, and two portions extending from the folded portion in a direction substantially parallel to the surface of the brake rotor. An apex of the folded portion of the detection wire is nearer than the straight portions to the wear surface of the holder, so that after a predetermined amount of wear, the folded portion is broken without breaking the straight portions. The probe is compact, and the wire remains securely in position during use.