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  1. #1
    Have bike, will travel Barrettscv's Avatar
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    6700 & 6600: are they cross compatable?

    Can I mix & match Shimano Ultegra 6700 and 6600?
    Last edited by Barrettscv; 03-23-11 at 04:56 PM.

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    Low car diet JiveTurkey's Avatar
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    The only mechanical change I've heard is that there is now a 28T cassette available, which makes me think the rear derailleur was modified to allow the slightly larger cog (6600 max-rated cog was 27T).

    (By the way, it's "mix and match.")
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  3. #3
    Go, Dog. Go! learnmedia's Avatar
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    I believe so. However, Shimano tech documents refer to A (fully) compatibile and B (somewhat less so) compatible depending on the specific component. I am running 6700 shifters with otherwise all 6600 (actually Ultegra SL) groupset. Works great.
    "He who cannot dance will say 'the drum is bad'" Ghana

  4. #4
    Senior Member
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    Yes, apart from the brakes, which do have some issues, but I have run 6700 shifters with 6600 brakes, and did't find there was any major loss in brake power. Here's the chart

    http://bike.shimano.com/publish/cont...ty%20Chart.pdf

  5. #5
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    ultegra 6703 Brifters cross-compatibility

    I have a SRAM Elita Triple Crankset, with 6703 Derailleurs and Shifters. I'm curious towards getting a double crankset (don't ask me why), but I'm having trouble believing that the shifters wouldn't function properly given a new double front derailleur and possibly replacing the long-cage in the back. Does anyone think there's a possibility it could be made to work? Thanks for any insight.

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