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  1. #1
    Senior Member
    Join Date
    Jan 2007
    Location
    Charlotte, NC
    My Bikes
    1998 Trek 7000, 2007 Surly Crosscheck, 2008 GT Peace 9r Multi
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    What parts do I need to...

    ...change out my 9-speed Shimano LX touring crankset (48-38-28) with a 10-speed Truvativ Elita cross crankset (48-34). Both are external bearing cranks. Will I need to put 9 speed chainrings on the Truvativ? Will I need to get a 10 speed chain if I keep the 10-speed chainrings? I think I'm ok with shifter (Dura Ace bar end shifters) and FD (LX with 48T capacity).
    ___________________________
    1998 Trek 7000
    2007 Surly Cross Check
    2007 On One Inbred 29er
    2009 GT Peace 9r Multi

  2. #2
    me have long head tube TallRider's Avatar
    Join Date
    Oct 2005
    Location
    Chapel Hill, NC
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    10-speed-compatible chainrings will work fine with 9-speed chain, assuming you're using a 9-speed system. The chain should match the number of gears on your rear wheel (cassette), not the official width of the chainrings.

    As for the tools to remove the external-bearing cranks, I don't know exactly b/c I've not worked with external-bearing cranks, but I think the tools are pretty straightforward. Check out Park Tool's instructions:
    http://www.parktool.com/repair/readhowto.asp?id=95

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