I have a 6600 ultegra short cage rear mech. I think Shimano say that the max difference should be 16 teeth, but was wondering if anyone has tried running a 11-28 cassette? Any problems?
See ED34s thread a bit further down. A search would have given you all you need to know.
There is a sticky in Beginers that covers all aspects of this.
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There is a sticky in Beginers that covers all aspects of this.