International pattern hub to American pattern adapter.

This adapter attaches to your International pattern hub (40mm register
x 58mm bolt circle) and allows American pattern (1.750” register x 2.500” bolt
circle) wheels to be used.

The adapter has 8mm attaching bolts. Many American pattern wheels are produced with the smaller holes to use 1/4″ attaching hardware and you will need to drill the 3 holes in your wheels to (21/64″) to attach. This can be done easily with a hand drill or in a drill press