My Di2 front derailleur is rubbing the chain. How do I fix that?
Chain rub can happen to the best of us. The fix for this depends on where the rubbing occurs. If the chain rubs in either your lightest or hardest gears, double-check the top/low limits for your front derailleur. If the rubbing occurs anywhere else you may have to try micro-adjusting or play around with the rear derailleur settings.
The front derailleur low/top limit settings depend on your Di2 series. I have added guides for both 1-bolt and 2 adjustment bolt front derailleurs to my Di2 installation guides.
If the above page does not help you resolve the issue, please send me a message I’ll try to help the best I can.