Wolf Tooth Disc Brake Adapter - Post to Flat Mount | +20mm

Is the Wolf Tooth Post-to-Flat Mount Adapter the Right Conversion?

The Wolf Tooth Disc Brake Adapter Post to Flat Mount +20mm solves one of the most common brake compatibility problems in cycling: running a flat mount caliper on a frame or fork that was designed for post mount brakes. This is the solution for gravel and road riders who want to use a modern flat mount road groupset on an older mountain bike frame, or any build where the caliper and the mount standard do not match from the factory. The +20mm offset accommodates a larger rotor size on the front or rear while maintaining correct caliper alignment.

Machined from stainless steel or aluminum alloy for durability under brake load, the adapter installs using the existing post mount bolts on the frame or fork and provides standard flat mount bolt holes for the caliper. This is the kind of precision hardware where quality of machining directly affects braking feel and safety, and Wolf Tooth's Minneapolis-made components deliver the tight tolerances that inexpensive adapters often miss. A straightforward, reliable solution for anyone building or converting a bike that crosses brake mount standards.