Are we talking about complete bike or just the frame? My 2013 Cervélo P2 is just under 20 pounds in its race ready state. Seeing some of these bikes at 17 pounds is making me want to become a weight weenie.

I have the one on the left size 57. In race mode with pedals and 3 bottle holders it weighs 16.28 lbs including disc rear and 60mm front wheel. It is very aero so why push more weight than you have to.