adjusting single pivot brakes

Discussion in 'Cycling Equipment' started by tepidarium, Aug 15, 2005.

  1. tepidarium

    tepidarium New Member

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    Hi,

    I'm having a heck of a time adjusting my single pivot campy brakes. I have done a search on the forum for single pivot brakes and I'm not sure I understand the required adjustment.

    My problems are:

    1. One caliper arm doesn't really move while the other does
    2. After I "center" the brake and tighten the bolt, when I engage the brake, the brake goes out of center again with the arm that doesn't move back dragging on the rim.

    I have taken the following steps to correct this problem:

    Center the brake and *really* tighten the bolt.
    Lube the spring contacts, lube the caliper where it pivots

    I have done an internet search and found this:
    Jobst Brandt explanation

    I am not quite sure that I understand exactly what should be lubed here but I think I've done it with no change.

    Anyone have any more advice?

    Thanks to all. :)
     
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  2. Hypnospin

    Hypnospin New Member

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    engage a suitably flat wrench, a cone wrench or a wrench made for rhis purpose (they had a 90 degree opening) to the flats on the pivot whilst tightening and align as needed.
    a serrated washer will serve well to counteract the predisposition to creep these things have.
    with the advent of the dual pivot, perhaps is this arcane?


     
  3. tepidarium

    tepidarium New Member

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    Thanks for your response. I think I figured it out. As you said, I used a cone wrench to tweak the adjustment nut on the single pivot. I did this while loosening and the steadying the bolt in the brake bridge. It seems to be ok now.
     
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