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  1. #1
    mtbr member
    Join Date
    Jun 2011

    help removing Critical Racing cantis

    I'm sure a picture would help but I'm experiencing technical difficulties- so here goes my best try at an explanation-
    When I disassembled these brakes and removed everything from the frame, I end up with the left side canti still attached to the brake boss on the front and the back. There's a brass bushing? that fits tightly over the brake boss that is attached to the canti arm itself. I can pull the assembly up maybe an 1/8" but it will not come off. I can spin it around the boss but it only spins. Do I need a gear puller to remove these brakes? FWIW, it even seems like the wall thickness of the left side brake boss is thicker than the right side.

  2. #2
    Stokeless Asshat
    Reputation: jeff's Avatar
    Join Date
    Jan 2004
    A bigger hammer. Really. The ends of the brake bosses have flared on you.
    Use a 9 or 10mm open end wrench. 9 fits perfect over the boss but a 10 will do. Slide it behind the brake and over the boss. Tap the wrench with a hammer. Bingo. Emery cloth to diminish the bulge on the boss.
    Zip ties? Not on my bike!

    650B rims or wheel set. 80's vintage 32 or 36 x 135mm

  3. #3
    mtbr member
    Join Date
    Jun 2011
    thanks jeff. that worked for the front boss, but the back is still stuck. I did remove the boss entirely from the frame and looks like a hacksaw will do the trick. I'll just get another brake boss...

  4. #4
    mtbr member
    Reputation: chefmiguel's Avatar
    Join Date
    Dec 2007
    Try warming up the bushing with a lighter

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