Abstract: A protector for the hand of a rider mounted on a bicycle or motorcycle is disclosed herein which is of semi-circular shape having an arcuate mid-section terminating at its opposite ends in retainers for detachably mounting onto the handlebar of the vehicle about the handgrips thereof. The retainer at one end is of the C-clamp variety having fasteners securing the clamp to the handlebar while the other retainer is an inwardly projection adapted to cooperate with the open bore terminating end of the handlebar to hold or retain the protector in position.