Short cage mech dou...
 

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[Closed] Short cage mech double chainset..?

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Can I use a Sram x9 short cage mech with a 22/36 chainset and a 11-32 cassette or will I need a medium. I seem to remember a way of working this out could someone remind me please. Thanks Sam


 
Posted : 04/12/2011 7:28 pm
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No, you will need a medium, i think due to the size of the rear cassette more than anything.


 
Posted : 04/12/2011 7:35 pm
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i think due to the size of the rear cassette more than anything

A short cage works fine with a 32/11 cassette. Its more to do with the difference in size between the front chainrings I think.


 
Posted : 04/12/2011 7:36 pm
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Ok thanks for replys, didnt think it would stretch to that.


 
Posted : 04/12/2011 7:37 pm
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no you shouldn't, it is due to cassette size, not chainrings...afterall look at road bikes


 
Posted : 04/12/2011 7:44 pm
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Surely its a combination of both? I'm assuming a (MTB) short sram mech is desinged for singe ring full size casette setups?

A 22-36T setup is a fairly big gap and an 11-32T casette isn't small either. I suppose it will depend on if you will ever use 36-32 and/or 22-11 also as to how much chain length difference the mech has to take the slack for?


 
Posted : 04/12/2011 8:14 pm
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No, you do have to consider the rear cassette size, not just the tooth capacity.
I am pretty sure you cant run a short cage mech on any cassette where the largest cog is over 27t but you may get upto 38t at a push. the jockey wheel will hit the cassette otherwise.


 
Posted : 04/12/2011 8:19 pm
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I was assuming a short cage (MTB) mech would be designed to run as single ring/full size casette setup (ie upto 34/36T casette) being an MTB mech not a roadie one, very much a personal expectation/assumption rather than the reailty of an X9 mech


 
Posted : 04/12/2011 8:22 pm
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I've used a short cage Shimano mech with a dual ring (32/22) setup and standard 11-32 cassette.

Think a short SRAM is a little shorter than a short Shimano so be careful.


 
Posted : 04/12/2011 8:24 pm