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Hi
Can I swap my 11-28 for 11-32 and keep my short derailleur ? (Di2 6870 Di2, 52/36 chainrings)
There was a write up in the etc magazine a while back where a chap did similar with a short cage ultegra rear mech.
He used a linderets road link doofer on the mech hanger to make it work.
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OP I ran exactly that combo with no issues (albeit with a 9070 Di2 mech)
Doesn't require the road link
Longer cage is fairly cheap (£17ish), short is only up to 28T if going by Shimanos recommendation.
Didn't work with my 5800 105 short cage mech, even with a longer b-tension screw. Not enough clearance on 32T cog, and angle of b-tension screw meant that only a little length could be added before it missed the lip on the gear hanger. Bodged it for one ride by adding nut to end of screw so that it caught the hanger, but shifting wasn't as good, mech angle was weird, and chain didn't wrap around much of the cassette. Just replacing the cage wouldn't fix this issue.
Someone panicking about the Fred?
Just get yourself fitter
I had to go medium cage Ultegra on my Tripster, to swap between road (11-28) and grrrrrravel (11-32) cassette. Compact up front though, couldn't you borrow one of those if it's a one off, or buy if it's long term?
The official answer is no, but the shape of some mech hangers will allow it.
dirtyrider - Member
OP I ran exactly that combo with no issues (albeit with a 9070 Di2 mech)
What bike are you on ?
jam bo - Member
Someone panicking about the Fred?
lol no its for LEJOG
teef - Member
Just get yourself fitter
i will try!! tbh im normally fine on the 11-28 but ive just done 4 consecutive 90 mile days and i was feeling the 'less fresh' on the climbs near the end so my thought process was if i can get an 11-32 cassette to take the sting out of a climb then i may as well as i dont see any significant drawback.
The official answer is no, but the shape of some mech hangers will allow it.
Its a Canyon Aeroad with hanger 25
What bike are you on ?
2010 Cannondale Supersix Hi-Mod
then a 2016 Giant Defy Advanced
i will try!! tbh im normally fine on the 11-28 but ive just done 4 consecutive 90 mile days and i was feeling the 'less fresh' on the climbs near the end so my thought process was if i can get an 11-32 cassette to take the sting out of a climb then i may as well as i dont see any significant drawback.
road link and a XT 11-40?
I've got it to work on my gravel bike (without a road link but using short cage di2 mech) albeit I'm running a single ring on the front.
i had a look at the road link an the website says:
11s Cassette Compatibility:
11-32: Not Required (GS medium cage rear derailleur works)
i will try the 11-32 with the SS this weekend, if it does not work i may get a GS