[Closed] sram x7 rear derailleur with XT cassette

Yep fine. Assuming you're using the appropriate sram shifter, the rear mech will live quite happily with that cassette.

yep sram levers.

great cheers

do sram not do a 10sp 11-34

its probably because a 10sp 11-34 cassette is pointless.

how come?

the marketing men said so. for actual riding, it's great, particularly with a triple. But if it suits your riding, then go for it - as with all gear ratio stuff.

i thought the whole point of 10 speed was a bigger range cassette?

11-34 is a normal 9sp range. therefore you dont achieve any benefit from running this 10sp (other than maybe having a clutch mech - which you are not)

infact you probably end up with more of a maintenance liablity.

with the 'advancement' from 8-9speed they 'filled in' the jump in gear ratios in a 8sp cassete (or at least thats how it was sold) with 10 speed they've barely got a reason to jusify it. lord knows the reasoning behind 11 speed.

I's like a 34-34 ratio on my cx bike for the peaks. at present I'm running a 34/46- 11-28.

will I need a long cage? or medium?

which would be the most reliable?

you can use a medium cage on that set up - as you don't have the small inner ring up front which would neccesitate the long mech.