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Rear Derailleur for a 32 10 speed cassette

dexty · 2014-06-21 10:29:18

Hi, Going to being doing some seriously steep climb this summer so wanted to change my cassette to an 11-32. But my DA RD will only take up to a 28. So I want to replace the RD but not sure which one would be compatible. It's a 10 speed 7800, so ideally a RD that can work with an 11-32 in 10 speed. Doesn't have to be DA…

21-06-2014 10:29AM

#1

dexty

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Hi, Going to being doing some seriously steep climb this summer so wanted to change my cassette to an 11-32. But my DA RD will only take up to a 28. So I want to replace the RD but not sure which one would be compatible. It's a 10 speed 7800, so ideally a RD that can work with an 11-32 in 10 speed. Doesn't have to be DA either. Anyone know which one will work?
Regards,
D

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Comments

#2 21-06-2014 10:32AM

07Lapierre

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Im no expert but any MTB rear mech
Should do? Youll also need a longer chain.

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#3 21-06-2014 11:00AM

Carpenter

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By gum son they must be some hills to need a 32

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#4 21-06-2014 11:45AM

cdaly_

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Dura ace comes only in short-cage. For a 32t you'll need a medium-cage. Ultegra and 105 come in both short and medium.

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#5 21-06-2014 12:14PM

Zen0

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My understanding is that the Shimano 105 5701 RD medium cage will take a 32. The 9 speed Shimano mountain bike derailleurs are reported to work fine also, but I don't think the ten speed ones will (different pull ratio).

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