The Nimbus D'brake disc brake mount will enable you to fit a disc brake to any Muni or big wheel frame. You just remove your existing left hand bearing clamp and replace it with this beautifully crafted disc brake mount machined from 7075 aluminum. The D'brake has been designed to have the disc running on the inside of the frame keeping it well out the way and allowing the rider to use their existing cranks. The D'Brake mounts directly onto a Nimbus Disc hub; add a disc brake and your ready to go ride. This clever configuration is designed to fit on almost any frame without machining.
The Nimbus D'brake uses the IS (International standard) two bolt configuration for cycle disc brakes. This allows you to run any caliper/disc combination without having to modify the mount in any way.