Wheel flex?

nawty Posts: 225
edited January 2013 in Road beginners
So I've done several 25+ milers since getting my bike and I'm rather liking it.

Yesterday I noticed, as I was standing up and putting in effort up hill that on my left foot downstroke it sounded like the brakes were rubbing ever so slightly, it only did it when I was in too high a gear but were putting in the beans to get over the crest of a hill.

Am I right in thinking this is wheel flex?
Cannondale CAAD 10 Ultegra
Kinesis Racelight Tiagra


  • It sounds very much like wheel flex, you could try to release the rear brake, ie turn the cable adjuster on the caliper anti-clockwise to open the gap between the brake blocks and the rim. Firstly check the gap between the blocks and rim are the same on both sides, occasionally they get knocked in storage or transport, if they require adjustment then manually re-aline.

  • nawty
    nawty Posts: 225
    Cool, thanks for the tip :)
    Cannondale CAAD 10 Ultegra
    Kinesis Racelight Tiagra
  • sungod
    sungod Posts: 16,544
    as above

    some wheels are just flexy, but it might also be worse checking spoke tension is correct, i had a set that from new were way below the manufacturer's spec.
    my bike - faster than god's and twice as shiny