Join Date: Apr 2009
Location: New Rochelle, NY
Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter
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There are two adjustments needed to manage the outermost position of the FD cage. The outer (H) limit screw which, as its name implies, determines how far the cage can move. And the cable tension, or trim adjustment which actually controls the position with respect to the lever position. First test the limit position by actuating the FD directly with your hand, or by pulling the wire away from the downtube to see if it will move farther out. If not, back off the limit screw and test again until you've solved the rubbing problem. Next use the adjusting barrel to increase the cable and move the cage out to the desired position.
When you've adjusted the trim based on the outer/outer combination test FD shifting and trim for the other chainrings. You might have to readjust the trim for the best all around performance rather than the one combination only. Sometimes a bit of compromise is needed.
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WARNING, I'm from New York. Thin skinned people should maintain safe distance