Interesting. It looks like it would be very top-heavy with such a small from wheel. Cannot wait for some "fail" videos!
Neat concept but at least in terms of this prototype, as a city bike it would not succeed because it still takes up more space when compared to a folding bike. I would assume that different cogs would be produced to vary top speed but honestly, even though the concept is for a smaller bicycle foot print, you don't see too many bike traffic jams.
