Campag cassettes and mechs compatibility

maddog 2
maddog 2 Posts: 8,114
edited March 2008 in Workshop
a mate has a standard double setup with a short cage mech but wants to go bigger on the rear sprockets than her current cassette, ideally up to 27-29ish. I notice that 13-29 is available in Centaur/Chorus etc.

What max sprocket can a short cage mech handle?

It's a record mech, not sure of year. 10 speed. I only know Shimano... :?
Facts are meaningless, you can use facts to prove anything that's remotely true! - Homer

Comments

  • yakk
    yakk Posts: 589
    Hi, short cage is fine for anything up to and including 26 at the back (as advised by Campag). If you go 29, you may need a medium cage. Having said that, a friend ran a 29 on the back with a short cage for the Marmotte. It might work if you avoid the extremes (big front and big back rings).
    Yak
  • maddog 2
    maddog 2 Posts: 8,114
    ta

    does anyone have a good campag url for this stuff

    their website deosn't have much that I've found

    I'll have a dig on sheldon
    Facts are meaningless, you can use facts to prove anything that's remotely true! - Homer
  • Rob Sallnow
    Rob Sallnow Posts: 6,279
    Search their tech pages at the back of their catalogue for capacities.....over the last few years they have had a disclaimer page that capacities are guides and can depend on several factors.
    I'd rather walk than use Shimano
  • DavidBelcher
    DavidBelcher Posts: 2,684
    maddog 2 wrote:
    a mate has a standard double setup with a short cage mech but wants to go bigger on the rear sprockets than her current cassette, ideally up to 27-29ish. I notice that 13-29 is available in Centaur/Chorus etc.

    What max sprocket can a short cage mech handle?

    It's a record mech, not sure of year. 10 speed. I only know Shimano... :?

    Simon Burney (GB off-road squad manager and former team mechanic) states in his book on cyclo-cross that a short-cage derailleur should be able to handle a maximum of a 28-tooth cog without any bother. As long as you're not trying to select big-to-big combos (e.g. 53t on front, 28t on back), you should be fine with a 27 or a 28.

    David
    "It is not enough merely to win; others must lose." - Gore Vidal
  • hamstercp
    hamstercp Posts: 639
    Yes, but anything that cannot handle big-big is dangerous. Usually the whole lot (mech and chain) feeds into the rear wheel. This leaves you walking at best.

    I know, you say you'll remember. It's the time when you are knackered and you need to grab a gear while a car is cutting you up that it happens.

    I run a Campag 12-23 with a 30/39/48 triple OK with a short cage mech. Just.
    "It must be true, I saw it on the Internet!"
  • Steve928
    Steve928 Posts: 314
    I use a short cage with 53/39 double and 13-30 cassette. As long as you get the chain length right all combinations are useable. I don't use big+big, but it won't break anything.

    Here's the proof:
    GEARS.JPG

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