Originally Posted by maddmaxx
I know its infuriating that we ask so many easy installation questions but its either one of those or the derailleur is bent.
When bolting on the derailleur, did the B adjust screw get jammed against the side of the dropout instead of lining up with its stop?
When viewing the derailleur from above and from the rear, are the jockey wheels in line and in the same plane with any one gear in the cassette?
Do you have a spacer or "dork disk" behind the cassette that can be removed?
Max:
1. Not infuriating at all.
2. Adjustment screw was not jammed.
3. They were in line in between the 12 and the 13 (it's a 12-27 cassette).
4. No dork disk.
I'm perplexed.