Just built this up. An '06 LOOK 585. Complete bike weighs in at 15.3 pound. The frame is very comfortable, almost too comfortable. The only thing i didn't like about the frame is that i doesn't have barrel adjusters, so fine tuning the derailleurs on the road is a drag. Other than that, there is no bottom bracket flex or chain rub on the front derailleur. The frame is much nicer looking in person.