Rrskit Post to Flat Mount Brake Adapter allows flat mount brakes to be added to a frame or fork that was designed for post mount brakes. This is a vital component for cyclists who want to run a road groupset on a mountain bike frame. It is important to note that this is a +20mm adapter, which means a 140mm post mount native size will only work with a 160mm rotor, just as a 160mm post mount native size will only work with a 180mm rotor, and so on. 

Compatibility:

Fits on post mount native sizes 140, 160, and 180mm

Works with rotor sizes 160, 180, and 200mm

Requires minimum 13mm between top of brake boss to frame/fork

Heat treatment: T6

Weight: 16g

1*Brake Adapter

2* M5x13mm flat head bolts for flat mount caliper