I have a Caad9 5 and the first thing to go was the brakes (upgraded to Ultegra). I swapped out the bars when I needed tape for the flat top FSA's found on the Supersix (with the compact drop). I really wanted to get a Fizik Airone and waited till CC had them for $57 bucks shipped (still getting used to it). Lastly, I came into some "found money" and bought Krysium Elites. I'm debating upgrading the drivetrain (to Ultegra) but won't do it for quite some time. I'm really fond of the Caad frame and happy that mine says Built in the USA. Until I can find a cheap Supersix frame with the same Built in the USA on the rear triangle, I will not consider upgrading.