Posted on 26th, February 2014 about Disc Brake Adaptor
1st ..... I have been using a PM-PM 203mm adapter for the front and this has bent out of alignment. I did not notice at first as I was using avids with their silly cone washer system and this was allowing the caliper to be installed in a reasonable position. I only noticed when fitting new shimanos with a direct mount, they wouldn't even come close to fitting. 2nd .... on rear I have used PM-IS 180mm adapter and this is 1.78mm too large. if you fit this it will wear a big nasty ridge in your pads. you can grind down and bodge a fit.