Originally Posted by
fimy
Ok I picked up a new derailleur, a Shimano 600, and it works like a charm. Still puzzled as to why the old one wasn't working, but all's well that ends well. This is my old one:
VeloBase.com - Component: Shimano FD-1055, 105SC
No indication that it's for a compact crank. I dunno.

I don't know what ,made me thing of this thread while I was riding this morning, maybe my loose crank. Glad to hear it worked out.
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