Alan Lucaswrote a question about Avid Post Mount Brake Adapter on January 2, 2014
My 2012 Specialized Stumpjumper HT is 140mm post-mount rear with the 20mm spacers on it to work with the 160mm rotor/Avid Elixir 7s that came stock on the bike. I'm swapping the brakes out for Shimano XTs with 160mm rotors. Can I just continue to use the Avid spacers that are already on the post mounts? Do I need to get the Shimano-specific post-mount adapter?