Ok, I'm ready for my abuse. 15 Fuji Altamira, full ultegra, carbon bars and seat post, selle italia flite carbon, and I figured I'd give tokyowheels a shot with their 1 year happiness guarantee and threw their 38mm carbon clinchers on. Bike weighs 16-4 ready to roll. Not a lightweight by any means but it's smooth and works very well for me.