Originally Posted by thewalrus
7.9 pound 2006 Ghisallo
http://www.fairwheelbikes.com/gallery/vicm2.html
Personally I would not attempt to ride it, it would probably flex like a noodle, and then I'd break the wheelset. I weigh 170 and my pedaling style tends towards mashing.
With enough money I could probably build a 14.0 pound bike I would trust completely. Scott CR1 SL frame, Lightweight wheels, tuned Record, etc.

Several European testers refer to the Ghisallo as a novelty bike, with very unstable handling. NR above 160 lbs.
Those weightweenie guys don't really ride their bikes, and when they have 4 page threads about handlebar tape weight, I cannot take them seriously.