Originally Posted by
daven1986
Don't have a pic, but mine used to be routed all the way under the bar tape, but I found this made the shifting poor on the rear derailleur. I then made it leave the tape at the bend. This could have been due to routing technique - i.e. too tight around the bar but I don't know.
I've always mounted my barcons in this manner on several bikes and never experienced shifting issues, even on ergo bars with several snaking bends. And I wrap my tapes very tight.