Butted titanium frames can be pretty light. An average size and stiffness road frame weighs about 2.5 pounds. Here is a frame I just finished up for Dominic. It weighs 4.5 pounds including the fork, headset, spacers, stem, post and clamp. Not bad.
Strong Frames is focused on attention to the individual, incredible customer service and designing and producing fine custom bicycles.
619 S Willson Ave.
Bozeman MT 59715