13-29 Campag Cassette

LDNTrailRider
LDNTrailRider Posts: 103
edited March 2010 in Workshop
Hi

I'm currently running a 12-25 but want to change to a 13-29 for a couple of hilly sportives I've naively signed-up for. I figured switching cassette would be cheaper/less hassle than fitting a compact chainset.

The question is; do I need a longer chain and/or a longer cage derailleur (currently have the standard short cage) or will my existing set-up do?

Thanks

Comments

  • APIII
    APIII Posts: 2,010
    Hi,
    I used a 13-29 for the Marmotte a couple of years ago on a short cage rear mech. It worked fine, but obviously at it's limit on the 29. It should be ok on your set up, but if you are looking to use it on a regular basis I would switch to a medium rear mech
  • GeorgeShaw
    GeorgeShaw Posts: 764
    The manual says medium cage.
  • yakk
    yakk Posts: 589
    Hi, I use a 13-29 as well and use a medium cage as a short cage didn't work for me. But I do know people who have used a short cage, so maybe it's worth trying before you buy a medium cage.
    Good luck on your rides.
    Yak
  • ajb72
    ajb72 Posts: 1,178
    To answer your other question, yes you are likely to need to lengthen your chain too.
  • mpd62
    mpd62 Posts: 71
    I have experimented with this for the same reasons, I have a chorus 10 speed set up and as long as you don't want to use 53- 29 (big to big rings)short cage is OK plus on the Chorus rear mech there is a screw you can use to adjust the distance from top jockey wheel to cassette which helps

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