Disc Mount Fixtures, Dummy Axles and Skewers

Flat Mount Attachment on ISO Fixture Body

Flat Mount Attachment on ISO Fixture Body

Two fixtures for the price of one! This fixture combination provides correct caliper mount positions for both frames and forks(fork plate sold separately).

This set includes a standard Incepi ISO fixture with a Flat Mount attachment. The combination jig can be used to attach Flat Mount caliper mounts to any bicycle frame or fork. The standard fixture requires a 3/4"(0.750") dummy axle. A 1.000" dummy axle option is available as an option. The design geometry is for 140mm rotors(or 160mm rotors with standard industry adapter). The fixture has 140mm written on it because 140mm is the base location for all Shimano or SRAM Flat Mount calipers. If you are building for either 140mm or 160mm rotors this is the correct fixture.

The fixture uses a small mounting block for frames. A simple plate attachment is available for forks. The frame block has two pairs of raised features which lock into the caliper mounting slots, keeping them parallel and preventing rotation during welding or brazing. The features are 34mm apart, and in the correct position relative to the axle as per bicycle industry standards. Any standard Flat Mount caliper mounts may be used. They may be purchased from Paragon Machine Works, other suppliers, or made by the framebuilder. The fixture is sold with the frame block as standard. The fork plate may be purchased separately.