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12-30t cassette on an S2 with 105

Last post 05-25-2013 12:34 AM by Floyd5k. 6 replies.
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  • 05-24-2013 10:39 AM

    • Delco
    • Not Ranked
    • Joined on 04-22-2013
    • Posts 2

    12-30t cassette on an S2 with 105

    I went with a standard ultegra crank and I'd like to have some better climbing gears so can I just swap out my 11-25t 105 cassette for a 12-30t ultegra cassette?  Would I need a rear derailler adjustment?

    Thanks

  • 05-24-2013 10:49 AM In reply to

    • racewatcher
    • Top 100 Contributor
    • Joined on 09-09-2011
    • Newfoundland and Labrador
    • Posts 214

    Re: 12-30t cassette on an S2 with 105

    Others can chime in here, but i think you'd need a long cage RD for 30 teeth, and probably a couple of extra chain links. I went from 11-25 to 11-28, with an Ultegra compact 50-34 crank, and it's been great on the hills. 2010 S2.
    racewatcher
  • 05-24-2013 11:45 AM In reply to

    • jdais
    • Top 25 Contributor
    • Joined on 09-10-2008
    • Long Island, NY
    • Posts 737

    Re: 12-30t cassette on an S2 with 105

  • 05-24-2013 12:00 PM In reply to

    • Delco
    • Not Ranked
    • Joined on 04-22-2013
    • Posts 2

    Re: 12-30t cassette on an S2 with 105

    Thanks, I guess i'll go with the 11-28t then.
  • 05-24-2013 8:39 PM In reply to

    Re: 12-30t cassette on an S2 with 105

     Just an FYI, CS 6700 11-28, $63.99 at Nashbar, free shipping

    with code 34846 through 5/27/13. Or CS-7900 @ 199 less 20% through 5/27 Plus

    shipping through Performance bike.

    I have some of each!

    ALoha,

    Jeff

     

    2014 R3 DA9070(Di2)Zipp404Firecrest Carbon Clinchers, Powertap SL+-SoCal
    2010 P2 DA/Ultegra-SoCal Zipp808 Firecrest Carbon Clinchers, Zipp Super 9 Carbon Clincher Disc
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    Speciaized Roubaix PRO DA-Maui
    Bike Friday-AirFriday- Kona and Honolulu
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  • 05-24-2013 10:46 PM In reply to

    Re: 12-30t cassette on an S2 with 105

    If you have a performance nearby tell them about the Nashbar price and they will match it; I got an 11-28 to with my new 52/36 setup up front for $64. Had to pay sales tax, but I got my toy right away instead of having to wait.
    2012 R3 Team, Reynolds Assault, Rotor 3D+. Praxis 52/36, 11-28, Look Keo Max2
    Pedala, Pedala!

  • 05-25-2013 12:34 AM In reply to

    Re: 12-30t cassette on an S2 with 105

    I installed a 12-30T on a Ultegra 6700 short cage RD (With a compact crank) on a Cannondale Synapse. I also know that an Ultegra 6770 works too (installed on a Trek Madone 6.2). In both cases adding 2 extra chain links and a "B" screw adjustment were made. I can't say if it will work on a 105 RD though but they are very close.
    2010 RS SRAM RED
    2009 Trek Madone 5.2 H2 Ultegra
    2008 Giant Trance X0 XTR
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