My bike weighs about 35 lbs empty. It has lights, fenders, rack, IGH, drive train protected from the elements, intregral lock. If I went lighter,I would be compromising on what I need. I need my bike to be reliable, low maintenance in crappy weather, dry, able to carry my stuff. It averages about 15 mph which is not unreasonable.

There is a guy at work who owns this light spindly thing. A thing of beauty. He only rides it in sunny weather. He also owns a car for when he can't ride.