BOX Disc Brake Adapter Features
The Box Disc Brake Adapter is designed to help improve braking control on frames where disc brakes were not standard. It goes over your hub’s axle and mates with the frame’s dropout, allowing mounting of a standard post mount disc brake caliper.- The Box Disc Brake Adapter is designed to help improve braking control on frames where disc brakes were not standard. It goes over your hub’s axle and mates with the frame’s dropout, allowing mounting of a standard post mount disc brake caliper.