Max size cassette for short cage rd-m735

[sherms]

Is it possible to run a 13-30 hg-90 cassette with a short cage rd-m735? I can see it stamped on the derailleur at 28t max, but wondering if anyone has tried successfully to run a bigger cassette. Thnx

 

[hamster]

A lot depends on things like your dropout length. Shimano guidelines are guaranteed to work - generally there is substantially more wriggle room. Wind the B-tension screw in and it most likely will be fine.

 

[FluffyChicken]

30, yes.
32 they can often do too.
28T was just the general normal large cog size.
It's just more chian it has to cope with, so greater chance of loosing you small small/medium setup.

When you consider they made a 34T XT cassette and the SGS had a max of 32T..

 

[sherms]

I’ve seen some people saying big/big can be problematic. Im thinking run 46/36/26 up front, would the chainring size affect it?

 

[FluffyChicken]

Big big is never a problem as that's what you should set your chain up for.

When you are in the granny and you drop to mid cassette*, you will probably have a slack chain, not a problem you can still ride and when you notice you just change gear out of it.

This is because chain wise, it is put of spec by a long way. (46-26 + 30-13) is a lot larger than 28T chain capacity (thin is different to the cog size capacity) of the SS spec, it is within the SGS spec

You shouldn't have a problem with the middle ring and small back as 46-36+30-13 is within the SS spec.

A quick calc and 46-26 + 30-22 is 28T so just under a 22T rear, who knows which real size, if in the granny ring your change will start to go slack

But never a problem.
It is also why they moved to a GS 'medium' cage as it became known of XTR.

So conclusion, Long Cage (SGS) is perfect, but the Short (SS) will be fine if you know it's limits, it also look a bit kewl ;-)