Back wheel howling when freewheeling

booktownman
booktownman Posts: 151
edited April 2012 in MTB workshop & tech
My FS has developed an occasional annoying howl when freewheeling at pace. It feels like it's coming from somewhere at the back of the bike, feels like the whole frame is vibrating. Can't work out if it's just a fitting or cable hitting an unfortunate frequency from vibration. The noise stops as soon as I move the pedals. Any ideas? Bearings maybe? It's doing my head in....

Thx in advance.

BTM

Comments

  • supersonic
    supersonic Posts: 82,708
    Is there something trapped behind the cassette? Take it off and have a look.
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  • booktownman
    booktownman Posts: 151
    Thanks - did some googling and it looks like it could be a freehub problem, so have some stripping and cleaning to do.

    Cheers,

    BTM
  • The Rookie
    The Rookie Posts: 27,812
    What rear hub? Magic freehubs have the well known 'screatch of death'!
    Currently riding a Whyte T130C, X0 drivetrain, Magura Trail brakes converted to mixed wheel size (homebuilt wheels) with 140mm Fox 34 Rhythm and RP23 suspension. 12.2Kg.
  • booktownman
    booktownman Posts: 151
    You mean Mavic, yeah? Mine is Mavic, took it off, stripped and cleaned it and it's right as rain. It used to have quite a loud ratchet click as well, but that's now also all but gone.

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