When you lay a Matchless spinning wheel on its back, prop up the drive wheel on books or blocks of wood. If the crank rests against the floor or a work surface, it can get scratched.
How to Install
You'll reuse the #8 x 1/2" Phillips pan head sheet metal screw holding the old bumper in place. Remove this screw and the rubber bumper.
Set the new rubber bumper in place. Attach with the screw.