The ball base is designed to fit into the cylindrical or hexagonal bore of motorcycle fork holes. It is suitable for pipe holes with diameters of 12 mm to 25.4 mm.

The package comes with two sizes of metal spacers: the small spacers are suitable for pipes with diameters of 12 mm to 18.5 mm, and the large spacer is suitable for pipes with diameters of 18.5 mm to 25.4 mm. For installation, you can select a spacer size based on the pipe diameter.

Measure the pipe diameter, select the correct spacer, and adjust it before installing the ball base. The minimum pipe depth is 38 mm.