You lucky Americans, we (the British) are stuck with 250W and 15.5mph (25kph). http://www.kinetics.org.uk/html/uk_law.shtml
The only bit I like is no low seat restriction, this could be a bummer for my TriceQ the seat of which is only 8" off the ground. I think I will get away with 20mph and 500W, there are precious few cops on the road now, it all depends on speed cameras.

