Question... I have a bike with Ultegra Di2 on it. Can i switch it to flat bars (heresy!) and still operate the front derailleur?
yes
you need 2x climbing switches if you want a double or go 1x and 1x climbing switch .. or the alfine Di2 flat bar switch.
@Soul started
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Question... I have a bike with Ultegra Di2 on it. Can i switch it to flat bars (heresy!) and still operate the front derailleur?