Originally Posted by Astra
I agree with everyone who says it's the hi limit screw. It sound like you are over tensioning the cable in an effort to get the front derailleur to move out a fraction to stop the rubbing.
Because of the limit screw, the derailleur can't move out enough to stop rubbing no matter how hard you tension the cable. It's breaking where it is because that is where the cable is most fragile duee to being pinched down onto the derailleur by the retaining bolt. Again, if your LBS didn't spot this, shame on them...
Well, i took it to LBS yesterday and they were to busy to fix it. I will take it back today and let them put a new cable on it. Then when i get it home i will check derialler setup myself and adjust if necessary. Next i am going to buy some cables. Do i also need cable cutters? What else do i need for DIY cable replacement??