105 5700 rear derailleur on 11s cassette?
02-24-16, 09:59 PM
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105 5700 rear derailleur on 11s cassette?
I upgraded my wife's bike to 11 speed. After I ordered everything I realized that I'm dropping her cassette lowest gear from 34 to 28. I got the 105 5800 short cage but the bike came with a 5700 medium cage rear. Is there some reason why the 5700 medium cage won't work on a 11 speed cassette if I swapped it to a 11-32?
02-25-16, 12:04 AM
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I don't have direct experience, but I've been under the impression that Shimano 11sp has a different cable pull and can no longer be mixed with older parts.
02-25-16, 01:02 AM
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02-25-16, 05:04 AM
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It won't work. I've tried it and the cable pull is different. You may be able to swap the pulley cages to make the 5800 a medium cage.
02-25-16, 06:15 AM
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No prob, I should have put looked at her gearing before I ordered. Thanks for the help!
02-25-16, 01:08 PM
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In my experience you can always fit a 30t with a Shimano rear rated for 27 or 28 and that works fine.
A 32t might fit if you pull out the B screw and put it in backwards. Depends on your frame and RD hanger
A 32t might fit if you pull out the B screw and put it in backwards. Depends on your frame and RD hanger
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