Miles Racing Brake Adapters for Bicycles, Post Mount to Post Mount Calipers, Shimano, 180mm Disc
Brake Adapters can be used to attach Shimano postmount brake calipers to frames or forks with postmount mounts.
ADP-31: For post-mount brake caliper to post-mount adapter / 180 mm disc / for Shimano older than 2012
ADP-32: For post-mount brake caliper mounting on the fork on post-mount support / 180 mm disc / for Shimano after 2013