Originally Posted by Braden1550

I'm gunna pick the DA every time. The Ultegra DI2 servos are at a different tolerance, consume more power with less accuracy. Battery life is halved. Front shifting is very inferior (a huge selling point on DA Di2) to DA Di2, my guess is to do with the lack of the pretension screw (not a limit screw, you won't know what I'm talking about unless you have it or have built a bike with di2).
2400 odd grams for the groupo is a bit porky IMO.

Ultegra Di2 over 6700? Almost, but the front shifting on 6700 would win me over.
Buy nice, or buy twice. Then again most people probably think sram red front shifting is amazing, so maybe Ultegra Di2 deserves more consideration.


Oh yeah, completely different cables, computer based diagnostics, groupsets/oem equipped bikes debut before shimano releases the diagnostic kit, so yeah. If you have technical issues, we ain't gunna be able to help ya for a couple months.