Campy cassette to big?

Ben.Cycle
Ben.Cycle Posts: 9
edited July 2010 in Workshop
I have a 12-27 Veolche cassette, and a short cage chorus derailluer, and the lowest three gears on my cassette are unusable. Is this because I need a 11-23 cassette?

Thanks for your help!

Comments

  • Limburger
    Limburger Posts: 346
    Nope, you just need to readjust the derailleur. Perhaps there isn't enough cable tension or you need to adjust the 'B' screw. 12-27 works fine.
    God made the Earth. The Dutch made The Netherlands

    FCN 11/12 - Ocasional beardy
  • Monty Dog
    Monty Dog Posts: 20,614
    When you say lowest, did you mean big or small? If you've gone to a bigger cassette i.e. larger sprockets, did you increase the length of the chain? Your problem could also be symptomatic of a bent gear hanger.
    Make mine an Italian, with Campagnolo on the side..
  • Ben.Cycle
    Ben.Cycle Posts: 9
    Thanks! I think I'll adjust the b-screw first, and if all else fails lengthen the chain a couple links.

    Definitely don't want to pay for another cassette!

    Thanks!

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