TRP Flat Mounts for Flat Mount frame or fork with Flat Mount caliper.
The front F5 adaptor must be used with a flat mount caliper on a flat mount fork. Mount one way for a 140mm rotor and reverse it for a 160mm rotor.
The rear F6 adaptor is for mounting a flat mount caliper on a flat mount frame when using a 160mm rotor.
No mount is required for a 140mm rotor set up.
Flat Mount frame or fork with Post Mount caliper.
These adaptors are for when mounting a Post Mount caliper onto a Flat Mount frame or fork.