Just picked up a Cervelo R5 with Dura-Ace Di2.
This exact set-up:
It's DA Di2 9070 or something.
This is just a test ride so I can try out Di2, but things that are immediately apparent:
- The R5 feels almost as good as the Serotta (my fit has been dialled in, I was impressed by the stiffness and handling of the R5 and it's almost as comfortable).
- Di2 is sweet. Absolutely going to get Di2 now, this is the first time I've used Shimano gear and come away happy... it feels as sure and smooth as Campagnolo Record or Super Record. Not quite as instant, but I bet the gear changes Di2 makes are cleaner than the ones I made on mech Record.
Di2 is in.
Which means the hydro Dura-Ace Di2 is in.
And probably the Dura-Ace power-meter crankset too (subject to whenever they're ready, but the bike won't be done for 2 months so I may as well just wait for the crankset to be available).