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About to change drive train to a 2 chain-ring set up, using a 40/28 combination and a 36-11 rear cassette. Has anyone run a short cage on this set up? Rear mech capacity appears to be 35, but that set up is 37 so it s going to be close.
Medium cage?
In my experience (running 2x9 22/34 chainrings and 34t cassettes) it’s best to use a medium cage mech with a few chain links removed. A 2 x 10 set up would also allow a clutch mech to be used to keep things nice and tight.
ive just changed mech on a 36/ 22 and 11-34 2x9 set up. I used a medium cage (GS) Saint mech and it only just had enough capacity to take up all the chain
Well, technically its a meduim cage, but shimano designate long cage (SGS) or short cage (GS). Long cage is 48 capacity, but i like the idea of running a short cage if i can.
Rear mech capacity appears to be 35, but that set up is 37 so it s going to be close.
If it's a FS factor in the swing arm movement as well.
Have a short cage X9 on the big bike with a 36T & 11-28 cassette. The mech would be toast with an 11-34 cassette. The same mech works fine on the jump bike.
I think the issue with the short cage is how close the derailleur gets to the cassette, I think they would touch with that size cassette.
[i]I think the issue with the short cage is how close the derailleur gets to the cassette, I think they would touch with that size cassette. [/i]
Nope, GS and SGS are both rated to the same largest cassette sprocket size. The cage length only affects the length of chain the mech can cope with.
Fair enough, everyday is a school day! đŸ˜‰