This is a tool kit for those who prefer to modify and use their original brake drum on the MAG-12 wheel, rather than buying a pre-machined drum from us.

Unlike with stock type spoke wheels MAG-12 wheels require the drum to be bolted to the hub from the front side. The existing grease deflector, however, demands the bolt circle to be enlarged slightly so the bolt heads clear the deflector. This task can be performed precisely and easily with this template in any workshop equipped with a drill press.