Originally Posted by
oldacura
Am I the only rider on the planet that doesn’t love Shimano Di2?
To be fair, the guy that built this bike for us warned against Di2 & 2 chainrings but I chose to believe the praises.
End Of Rant.
oldacura - Wish I could offer some advice but I am certain that others here are more qualified, based on their experience with the Di2, of which I have none. My only comment is an observation to
trust the builder. My builder saved me from myself when i spec'd a drive train that was popular on tandems - CoMotion, Santana, etc . - at the time but he said in his experience it did not shift well. Months later I read multiple reports of the problems shifting the system that I had asked for.
Di2 looks very cool and it seems many are happy with it but a good old Ultegra mechanical system has been adequate for me.