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  1. #1
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    changing XT outer ring

    FC-M780(what i have) is the triple crank version
    FC-M785 is the double crank version

    will it be a problem if i changed my current outer ring 42T to a 38T outer ring of a FC-M785.?

    shimano documentation on the FC-M785 shows that there are 2 38T rings.

    Y1ML98040 Chainring 38T-AM
    Y1ML98020 Chainring 38T-AK

    and the FC-M780 Chainrings are -AE's.. so are they not compatible?

    which one should i be getting or if im even in the right frame of thought that the M785 38T chainring is compatible with my current M780 setup.

    OR is there a better option that i should take like other mfgs. like RF, TRUVATIV..

    what i have right now 42/32/24 - 11/36

    thank you.
    Last edited by bapski; 05-22-2013 at 02:17 PM.
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  2. #2
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    What did you end up doing? I'm in the same quandary. After about 1,700 miles in a year my middle and big rings are done. The Shimano rings are expensive and looking for an alternative and/or the correct rings.
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  3. #3
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    Quote Originally Posted by vuduvgn View Post
    What did you end up doing? I'm in the same quandary. After about 1,700 miles in a year my middle and big rings are done. The Shimano rings are expensive and looking for an alternative and/or the correct rings.
    still at stock since im not really sure if what i want to do is doable..
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