The Wolf Tooth Post to Flat Mount Brake Adapter is a game - changer for cyclists. It enables you to add flat - mount brakes to a frame or fork originally designed for post - mount brakes. Ideal for those who wish to use a road groupset on a mountain bike frame. This +20mm adapter means a 140mm post - mount native size works only with a 160mm rotor, a 160mm post - mount native size with an 180mm rotor, and so on. CNC machined from 6061 - T6 aluminum for top - notch quality. Sold individually. Compatibility details: Fits post - mount native sizes 140, 160, and 180mm. Works with rotor sizes 160, 180, and 200mm. Tested with SRAM and Shimano brakes. Requires at least 13mm between the top of the brake boss and the frame/fork. Comes with (2x) M5x13mm flat - head bolts for the flat - mount caliper and (2x) M6x15mm socket - head bolts for the post - mount.

Using the Wolf Tooth Post to Flat Mount Brake Adapter is straightforward. First, make sure your frame or fork is a post - mount type with a native size of 140, 160, or 180mm. Check that there is at least 13mm between the top of the brake boss and the frame/fork. When installing, use the provided (2x) M5x13mm flat - head bolts for the flat - mount caliper and (2x) M6x15mm socket - head bolts for the post - mount. Remember the +20mm rule when choosing the rotor size. As for maintenance, keep the adapter clean. Wipe it down after each ride to remove dirt and grime. Periodically check the bolts to ensure they are tightened properly. If you notice any signs of wear or damage, replace the adapter promptly.