New build!

[VeloceNiente]

Well, I have decided to yield to the corrupted modern world and build up a carbon di2 bike, and would welcome opinion and advice on the build.

Just bought the frame, a used Aethos s-works.

I'm pretty set on Ultegra 12 speed.

Ultegra cranks the best choice? Which non-Shimano cranks should I look at, if any?

Are there non-shimano bottom brackets I should consider?

Are there any benefits going with Dura-Ace levers other than a fractional weight savings?

Same question for brake calipers - Shimano claim stiffer one-piece design.

Thanks and I'll post some photos as the build progresses.

-Jeff

[ridethecliche]

If you're set on ultegra di2, might as well buy the groupset. There are reasons to mix and match but if you don't have a preference then don't bother. It'll be light enough and you can spend that money on wheels.

[deluz]

Ultegra 12 speed is very good. I actually went 105 on the shifters to save some money and happy how it turned out.