Campag Chorus 2010 Rear Derailleur

fred22
fred22 Posts: 509
edited May 2011 in Road buying advice
I'm sure I've seen this stated on the campagnolo site no less but I'll be blowed if I can find it and am hoping that someone on here, one of the Campagnolo experts can confirm:

Your starter for ten:

The 2010 Chorus rear derailleur, one size fits all cassettes in particular I can use a 12-29 cassette with the standard rear derailleur?
True or false?

Thanks

Comments

  • Monty Dog
    Monty Dog Posts: 20,614
    Many people successfully run the 13-29 cassette with a short-cage mech - can't say definitely because factors like rear mech hanger length on your frame come into play
    Make mine an Italian, with Campagnolo on the side..
  • fred22
    fred22 Posts: 509
    thanks. I'm certain that somewhere on the campagnolo website it says words very similar to "as of 2010 you dont need a medium cage rear deraillevr anymore, maybe we dont even make one, you can use cassettes up to 29 tooth with the single standard rear derailleur and a compact chainset ", just wish i could find it
  • rolf_f
    rolf_f Posts: 16,015
    I've currently got a 13-29 cassette on 2010 Centaur short derailleur and it is fine. However, although the derailleur should cope with 29, I'm not sure it can do 12-29 as they don't do them for 10 speed. I was going to try by making a hybrid out of a 12-25 and the 13-29 but I haven't got round to it - which isn't much help!
    Faster than a tent.......
  • rolf_f
    rolf_f Posts: 16,015
    fred22 wrote:
    thanks. I'm certain that somewhere on the campagnolo website it says words very similar to "as of 2010 you dont need a medium cage rear deraillevr anymore, maybe we dont even make one, you can use cassettes up to 29 tooth with the single standard rear derailleur and a compact chainset ", just wish i could find it

    I have a 2009 catalogue and they only list mediums for Veloce and Centaur.
    Faster than a tent.......
  • fred22
    fred22 Posts: 509
    thank you rolf. Its implicity stated in the fitting instruction pdf for the 2010 chorus rear mech where its stated that any 11sp campag cassette is suitable, just infuriating me now because i've seen it stated explicitly on their website and cant find it!
    I'm considering lashing out on the 2010 chorus gruppo for my best bike but I'd want 12-29 on the back, that 29 tooth cog is a boon
  • fleshtuxedo
    fleshtuxedo Posts: 1,853
    I use a 12-29 11 speed cassette with a Record 2010 short cage rear mech and it works fine.
  • ajb72
    ajb72 Posts: 1,178
    I have exactly that mech and cassette combination on my bike at the moment - it works perfectly.
  • fred22
    fred22 Posts: 509
    Ah found it

    http://www.campagnolo.com/jsp/en/newsdetail/newsid_116_newscatid_3.jsp

    "In fact, the new 12-29 combination used with a compact 50-34 crankset generates metric developments analogous (2,49/8,84m) to those of a 53-42-30 triple crankset. And that's not all. The use of a compact crankset in place of a triple makes it possible to obtain better chain alignment and a big reduction in weight, a crucial factor when you're confronting those really demanding climbs.

    And all this without even having to fit a dedicated derailleur!

    The really big news is that Campagnolo has managed to keep a single rear derailleur configuration, thereby avoiding the problem of the double option: derailleur with medium or short arm.
    So there is just one rear derailleur and it can work precisely and optimally from sprocket 11 to sprocket 29 with all the combinations of Campagnolo 11-speed cranksets available."

    Thanks to all who replied
  • sunburntknees
    sunburntknees Posts: 272
    I use a 12-29 11 speed cassette with a Record 2010 short cage rear mech and it works fine.

    +1

    Usually run a 12/25 but swapped out for a 12/29 for the mountains. Didn't need a single adjustment.