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  1. #1
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    Short cage capacity

    In 1x10 mode with 38 tooth front chainring, can a short cage Shimano Ultegra 6700 rear derailleur handle an 11x32 rear cassette? Some sites say yes and others say up to 28.

  2. #2
    bt
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    no.

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    bt
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    there is a difference in the definition of "max cog capacity" and what the "largest rear cog" a derailleur can handle.

    one has to do with long or short cages, the other has to do with the largest cog size.

    the jenson ad says it can handle a 30t cog size max. and a 30 cog capacity.

    the merlin ad says depending on cage length, it can handle either 33 or 39 cog capacity, but doesn't mention max cog size.


    I have tried a 32 max cog size and it wouldn't work.

  5. #5
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    Quote Originally Posted by bt View Post
    there is a difference in the definition of "max cog capacity" and what the "largest rear cog" a derailleur can handle.

    Yep^ 2 different things, though the former is generally referred to as 'max total capacity' Shimano says 28t max cog size for both the ss and gs models but the gs has a 39t total capacity vs. the short cages 33.

    I'd go for a mtb derailleur for better results.

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    Quote Originally Posted by J.B. Weld View Post
    Yep^ 2 different things, though the former is generally referred to as 'max total capacity' Shimano says 28t max cog size for both the ss and gs models but the gs has a 39t total capacity vs. the short cages 33.

    I'd go for a mtb derailleur for better results.
    Using drop bars and already have shifters so have to use road style derailleur to be compatible with my shifter. It sucks big time cause I wanted to use a clutch derailleur but I am going to have to settle for a road to compat with my shifters.

  7. #7
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    A 9 speed Shimano MTB rear derailleur will work fine with a 10 speed or less Shimano road shifter.

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    Quote Originally Posted by Slash5 View Post
    A 9 speed Shimano MTB rear derailleur will work fine with a 10 speed or less Shimano road shifter.
    That's what I heard but they don't make a 9 speed with a clutch right?

  9. #9
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    Correct.

  10. #10
    NedwannaB
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    Quote Originally Posted by Slash5 View Post
    A 9 speed Shimano MTB rear derailleur will work fine with a 10 speed or less Shimano road shifter.
    No way to use a 10 spd Shimano mtn der and modify/offset cable attachment similar to the SRAM 9 shifter/Shimano 10spd der? Or is pull that much different from 9-10?
    Wait whuuut, who did he tell you that!?!?....

  11. #11
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    Actually, it looks like a Jtek Shiftmate 6 would work.
    Shifter - Shimano 10 speed road Derailleur- Shimano 10 speed MTN Cassette - SRAM / Shimano 10 speed
    Shiftmate Compatibility | Jtek Engineering

  12. #12
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    This is for my gravel cross bike build. I probably don't need a clutch derailleur but my understanding is that when they get really muddy clutch derailleurs don't suffer from chain suck like a non clutch derailleur will. I did find that Gevenalle does offer this derailleur though that is modded to handle the rigors and muddy conditions of cyclocross. BURD Rear Derailleur - Gevenalle

    I can't find any reviews on it to see how it shifts compared to other brands of derailleurs. Gevenalle shifters have gotten great reviews and I ordered a pair if their levers. I might give this derailleur a try.

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