Bottom bracket - explain the signs

stefano
stefano Posts: 254
edited June 2007 in Workshop
My bottom bracket is a bit wobbly mostly on the right (chainring) side. Could I tell that I need a new one or I just need to tighten it? Is it common that wears out or gets loose from the right (chainring) side?
Thanks
[:)]

Comments

  • Unknown
    Unknown
    yes and no. I've worn a couple in the last year and they both went on the non-drive side.
    it is very normal for one side to go first though

    Mleh Mleh Mleh
  • pbiggs
    pbiggs Posts: 9,232
    I think any play in the bottom bracket bearings would be equally noticeable on either side. Tightening the cups won't get rid of the play, and modern (catridge) bearings can't be adjusted.

    <i>~Pete</i>
    <i>~Pete</i>
  • wotbus@
    wotbus@ Posts: 301
    Yes - you need a new one. If you do it yourself, remember the thread differences - r/h thread for r/h side (chain) and l/h thread for l/h side. Same with pedals [;)]
  • simmers
    simmers Posts: 92
    Any play = replace it. I don't think the sealed type can be tightened to remove play?
  • AndyGates
    AndyGates Posts: 8,467
    They can't, though the cup might just be loose (or the crank may be loose on the spindle).

    Either way, a new BB is œ15-18 and a good LBS will fit it for freep.

    <font size="1">
    <b>No longer looking for a pennyfarthing as I've got some powerbocks instead. Casualty here I come!</b>
    It is by will alone I set my ride in motion.</font id="size1">
    Wanted: Penny farthing. Please PM me!
    Advice for kilted riders: top-tubes are cold.

Categories