Rear Brake Pivot changing under braking

nwallace
nwallace Posts: 1,465
edited September 2010 in Workshop
Hi,

I keep finding my rear caliper moves on it's pivot when I'm on the brakes (they work really well too, much better than my front but then I put pishy shimano pads on the front) so when I come off them one side is much closer to the rim than the other and sometimes it's rubbing.

I thin I've got the pivot bolt racked up pretty tight but is it likely just me being a bit of a wuss and not punting it on tight enough?
Do Nellyphants count?

Commuter: FCN 9
Cheapo Roadie: FCN 5
Off Road: FCN 11

+1 when I don't get round to shaving for x days

Comments

  • rake
    rake Posts: 3,204
    what brakes are they.
  • Ben6899
    Ben6899 Posts: 9,686
    8Nm - are they tight enough?
    Ben

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  • keef66
    keef66 Posts: 13,123
    Have they got a little screw to adjust the spring tension? I think you need to fiddle with that so that applying the brakes doesn't turn the caliper on the mounting bolt.
  • nwallace
    nwallace Posts: 1,465
    Fairly basic tektro callipers, think they may be dual pivot.

    I could just use this as an excuse to put something new on the bike and then make sure what ever is new is tightened correctly.

    Will have a look for spring tension.
    Seems to be some sort of machine screw in the top of the lever with the cable adjustment on it.
    Do Nellyphants count?

    Commuter: FCN 9
    Cheapo Roadie: FCN 5
    Off Road: FCN 11

    +1 when I don't get round to shaving for x days
  • rake
    rake Posts: 3,204
    nwallace wrote:
    Fairly basic tektro callipers, think they may be dual pivot.

    I could just use this as an excuse to put something new on the bike and then make sure what ever is new is tightened correctly.

    Will have a look for spring tension.
    Seems to be some sort of machine screw in the top of the lever with the cable adjustment on it.
    that is used to centre the calipers. it should sort you out.
  • nwallace
    nwallace Posts: 1,465
    thanks I'll give that a shot.
    Do Nellyphants count?

    Commuter: FCN 9
    Cheapo Roadie: FCN 5
    Off Road: FCN 11

    +1 when I don't get round to shaving for x days