Cassette change 12-28 to 11-28 problems?

dg74
dg74 Posts: 656
edited September 2012 in Workshop
Hi.

I'm looking at changing my 12-28 cassette to an 11-28. Are there any problems which I may encounter?

Thanks in advance.

Comments

  • sungod
    sungod Posts: 17,498
    as long as the chain isn't excessively worn it'll be fine
    my bike - faster than god's and twice as shiny
  • dg74
    dg74 Posts: 656
    sungod wrote:
    as long as the chain isn't excessively worn it'll be fine

    Thanks.

    Will I need to re-index from the barrel adjusters? Asking as I need to be sure I can whip this off without major hassle :D
  • sungod
    sungod Posts: 17,498
    if it's the same model cassette then should be ok, but if it's a different make/model there can be enough difference to need a slight adjustment

    the amount should be consistent so as long as you note how many clicks cw/ccw are needed the first time you can just repeat this whenever you change over
    my bike - faster than god's and twice as shiny
  • dg74
    dg74 Posts: 656
    sungod wrote:
    if it's the same model cassette then should be ok, but if it's a different make/model there can be enough difference to need a slight adjustment

    the amount should be consistent so as long as you note how many clicks cw/ccw are needed the first time you can just repeat this whenever you change over

    When you say "note how many clicks", can you explain, please? Is that clicks on the shifters or elsewhere? Bit confused by that. Thanks.
  • rolf_f
    rolf_f Posts: 16,015
    Yes - the range of the rear mech might not be enough. Partly depends on whether you chainset is compact or standard.

    Why do you want an 11 tooth anyway?
    Faster than a tent.......
  • ultegra 11-28's may need a 1mm spacer - if thats what you've got and the cassette wobbles a teeny bit then that'll be the prob.
    The dissenter is every human being at those moments of his life when he resigns
    momentarily from the herd and thinks for himself.
  • dg74
    dg74 Posts: 656
    Rolf F wrote:
    Yes - the range of the rear mech might not be enough. Partly depends on whether you chainset is compact or standard.

    Why do you want an 11 tooth anyway?

    It's not for me, mate. I've only ever changed my cassette but I've been asked to swap one for someone else.

    Don't mind breaking my own bike, so to speak, someone else's though is a different matter :D
  • dg74
    dg74 Posts: 656
    ultegra 11-28's may need a 1mm spacer - if thats what you've got and the cassette wobbles a teeny bit then that'll be the prob.

    It's 105 he's running currently.