Mounting hardware to increase rotor size 20 mm or 40 mm over your frame or fork's stock size. Includes spacers, washers, and bolts for both standard and CPS calipers. Sold per brake. Two sets of adapters will be required for a pair of brake calipers. These Avid Post Mount Adapters are best used with Avid brakes.
20 mm adapters are compatible with 140 / 160 post-mount forks and 140 / 160 / 180 post-mount frames.
40 mm adapters are compatible with 140 / 160 post-mount forks and 140 / 160 post-mount frames.
Feel free to contact us with any questions or concerns.