Originally Posted by
Shadco
He is incorrect as far as 12 speed goes.
No need to mess with the fd wire, the battery has a spare port, mine is in the seat post, pull the post connect a Di2 wire long enough to reach the shifter, roll the hoods back connect the other end of the wire into the shifter port and have at it. Once you are done pull the wire, put the seat post back in tighten the seat post clamp and you are done.
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''No need to mess with the FD wire, just remove the seat post, get your hands messy with carbon paste and connect the port on the battery''
. I wonder which one of these options is faster!
Too much of a hassle for for me. It won't be updated.