We sell a broad range of disc brake adapters that allow different-size rotors to be fitted or lets the customer fit brake calipers of a certain standard to a different one.
Here are the three standards.
We have the International Standard (IS), the Post Mount (PM) and the Flat Mount (FM). The Post Mount standard is very much the norm on modern bikes, with the Flat Mount being more and more often used on road and lightweight mountain bikes.
Adapter to go from IS to PM.
Here is the adapter that allows a PM caliper (red arrow) to be fitted onto an IS fork (blue arrow) or frame. When using this style of adapter, you can also make it fit various rotor sizes.
Adapter to go from IS to PM.
Here is the adapter that allows an IS caliper (red arrow) to be fitted onto a PM fork (blue arrow) or frame. When using this style of adapter, you can also make it fit various rotor sizes.
Adapter to go from PM to PM.
Here the adapter is purely in place to allow a bigger rotor to be fitted. The adapter pushes the caliper further away from the frame/fork so that a bigger rotor can fit through.
Adapter to go from FM to FM.
Here the adapter is in place to allow a bigger rotor to be fitted. The adapter pushes the caliper further away from the frame/fork so that a bigger rotor can fit through. While FM frames don't need an adapter or a plate to be fitted for the caliper to be fixed to the frame (disc rotor size dependent), FM forks always need an adapter or plate for the caliper to be fixed to the fork.
Adapter to go from PM to FM.
Here an adapter allows a PM caliper to be fitted onto an FM fork or frame. When using this style of adapter, you can also make it fit various rotor sizes.
For all adapters, please see our extensive adapter section, covering IS, PM and FM adapters, by following the ADAPTERS link.
