The Madone & RCA are more aero framesets.
The RCA is the most expensive and is built around a BBright BB.
I really dislike the Madone seatpost setup.
Trek Madone Vapor Weight ~750g
Cannondale Supersix Evo Black ~655g
Cervelo RCA ~ 667g
Guessing that no-one will have ridden all three but there is surely a discussion here around specs on paper.
sedluk wrote:The lightest Cannondale frame with hardware that I have seen weighed is Neil Shirley's Nano, 718 grams for a size 54cm. Not sure where you are getting your numbers.
Google found this - http://road.cc/content/news/61231-cannondale-2013-launch-655g-supersix-evo-black
So I do not understand, why they sell super light RCA with Rotor crank, which is one of the heaviest cranks available. Is it possible to build Cervelo with any standard crank?
And Ridley X-Fire Disc http://weightweenies.starbike.com/forum/viewtopic.php?f=10&t=124026&p=1056055#p1056055
I think the 3D is really heavy but the 3D+ cranksets are actually pretty good weight wise. There are some options though for swapping out that crank if you don't want the Rotor.
If you can afford to RCa why not a custom Crumpton, Parlee or even better the A2J bike.
As you said SS is not aero and the other 2 have some aero features but aren't true aero bikes. Looking back at Andy's blogs he certainly gave a lo of consideration to Aero profile when designing the A2J.
Not slamming any of these choices, I just prefer giving my money to the boutique guys (and to be a bit of a hypocrite I am riding a Foil this year as came from the team and I wanted to try a true no compromise aero bike).
I think a Crumpton UL would be more than competitive with the weight of any of these.
That being said I love both the Cannondale and the Cervelo and would probably go for the Cervelo if price was no object. It is fairly exclusive given the limited run, it would retain value better than the other two and Cervelo is sort of a Canadian company. I just don't like the Trek, I am sure it is a great bike but not for me.
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I mean, this is the unfinished weight... Under 600 grams for a size 54 (at least), and look at how massive that BB is in comparison to most custom bikes
They didn't spend thousands of dollars on windtunnel and CFD/FEA time for nothing...
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