I question how many of those bikes make it through the complete Tour de France, those guys have several bikes that are all set up the same, not just one.

Ultralight touring bikes aren't anything new. The Technical Trials from the 1940's produced some spectacular bikes. I am not a huge fan of CF, engineered properly it can do some amazing things, but that doesn't mean you should.

If you have the money to spend, go for it. I will stick with my proven, heavy, inexpensive (relatively speaking) steel bikes. Some of which are still rolling after tens of thousands of miles and decades of riding.

Aaron