Nothing wrong with being a traditionalist, as in DA 7800. Also nothing wrong with being an early adopter or technology-wh*re. Just two different, equal approaches to life. However, I am searching for a pic with a monkey riding a bike in an electrical storm....
My opinion - currently own/ride DA7800 and Ult6700 on my CAAD10s - is that set-up plays a big part and mine both run exceptionally well.
I recently had the opportunity to test some new u-beaut bikes around a 10km test-loop in my local area (ie, decent rides up/down grades, etc) - DA90?? (electronic), DA9000, Ult6800 and UltDi2?? (electronic) and can honestly say that they all shifted as well as one another - subtle tactile differences of cable feedback vs electronic (no cable feedback) aside. Certainly, they all seemed a tad smoother than my own bikes, but not crazily so - there was no great difference in performance.
Whilst I will more than likely explore these 11-speed groupsets in the future, this testing didn't convince me to run out and upgrade too soon.
Dismissing the opinion of those who are not necessarily as convinced of the qualities of Di2 as you appear to be doesn't really validate your opinion.
Other thing is, there have been accounts...I know this is heresy for electric shift lovers...where owners have switched back to mechanical after going Di2. Some believe there will be no more mechanical groupsets at some point, but I am unconvinced of this because of the reasons talked about.
Good to have options and with new bike tech for bicycle lovers, its never been a better time...few bad choices really.
Also OP, the frame is the heart and soul of a bike and your choice of Tarmac S-works is right up near the top. I am on the look out for one as well. Just don't want to pay retail....what my rich friends taught me. ;)
I agree with you about the feeling of no great difference. I've got Di2, 7900, and recently had a borrowed bike with 9000. I really like the 9000 with 11 speed but it may be because it was brand new.
My experience with electronic is the benefits from come long time use. I was on a ride yesterday going fast on rolling hills with turns and lots of shifting. Just touching the buttons to shift constantly came like instinct. I liked the sensation.
Any argument to use Roval more so since made for Specialized bikes?
In other words give it more kudos then if choosing it off the shelf for any bike since made for a Tarmac
If the choice was Dura Ace electronic and Enve 3.4 vs. Ultegra electronic and Rovals what would be suggested?
I can get bike at similar price with either combo so which offers better value (wheels or group set)?
To go with both DA and Enve is getting past the number I wanted to stay below
I think personally I would go with DA Di2 + Rovals but no doubt Enve lovers will go the other way.
Great to have this kind of tough choice. :) Be sure to review the bike here when you get it.
How similar are the prices if one puts you over budget and the other does not?
I think if you did a Pepsi challenge between those two setups, 90% of the riders wouldn't be able to tell a difference between the two, if not more. That said, the Ultegra/Roval combo will always looked down upon between the two simply because it has less prestige. Campag's suggestion is solid in that there's a bigger difference between the groups in question than the wheels.
On the other hand, from your other threads and posts, it seems like you're going to be seriously irked if the bike isn't unquestionably primo kit. And my assumption for most people building up $~4k frames on their own money is that whatever the difference is between DA/Enve and U/Roval, it's a pretty small drop in the bucket over the minimum 2-3 years you'll have the bike before upgrading components or building a new one.
Either way, you end up with a perfectly great bike.
Will have bike longer than 2-3 years. Prices are very similar. I "could" spend the money I guess to go DA AND Enve but not sure I want to or that it would be worth it. Want to set a limit on this
So would group set or wheels be more worth the money?
Guess also easier to upgrade wheels if wanted to later on rather than going from Ultegra to DA
That is why leaning towards DA with Roval (which many people are saying are very good wheels and not that different from Enve) Not sure I like the look of Enve and the different sized wheels front and back