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  1. #1
    Shut Up and Ride domestique's Avatar
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    Which Rear Derailleur? Short or Mediumn?

    I am buying a new Campy Chorus Carbon Crank that will be 34-50. I run my cassette (10 speed) at 11-23 and sometime 11-25 (mountains).

    Will my short cage derailleur work? Or do I need a medium cage?

    Thanks in advance!
    do·mes·tique (dms-tk) n.
    A member of a competitive bicycle-racing team whose role is to assist the team leader, as by setting the pace.

    C'Dale Six13 (Record 08), Olmo Antares (Record/Chorus 06)

  2. #2
    old fart
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    Short will suffice.

  3. #3
    Senior Member
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    Campy's guidelines:

    XXx26 or smaller cassette and a double crank = short cage
    13x29 cassette and a double crank = Medium cage
    13x26 or 29 cassette and a triple crank = long cage.

  4. #4
    Slave of the road nuovorecord's Avatar
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    Short will work. I use the identical crank and der set up on a 13-26 cassette. Shifts like a dream.

    FWIW: You didn't ask, but if you have a standard Campy front derailleur, it should work properly as well, as does mine. You'll need to lower the front derailleur a touch to match up with the smaller large chainring. I did put a chain keeper on the seat tube as I had problems with the chain dropping on front upshifts.
    "Ride lots." - E. Merckx

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