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  1. #1
    mtbr member
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    Join Date
    May 2009
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    28

    Brake pad too far out on BB7 with 140mm Ashima Airotor

    I've been running BB7s with 160mm rotors for a while but just moved to a 140mm Ashima Airotor in the back. The brake pad is too far out relative to the rotor (by about 2 mm), so the outer edge of the pad is not touching the rotor at all. What's going on? Maybe the rotor is undersized (sorry, should have measured but I was too lazy) or my 140mm IS rear adapter is slightly oversized. I think it's installed in the right direction, but here's a picture in case I'm missing something.



    Any fixes? Should I face the adapter? Or maybe the flat side of the lower CPS washer? Thanks in advance for the help.
    Last edited by 5b00; 01-16-2013 at 11:03 PM.

  2. #2
    rebmem rbtm
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    Join Date
    Apr 2007
    Posts
    2,900
    The easiest thing to do would be to remove the CPS washers from between the caliper and the adapter and replace them with some washers or a spacer of an appropriate size to pack the caliper out to the correct position.

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