Without a doubt, the most practical, portable, and efficient Electric Urban Commuter out there. In production and available NOW, with many models to choose from. I have a Trikke Tribred Pon-e 48v; and for about a $0.10 recharge, I get over 20 miles of 3-wheel, TILTING, travel and... FUN! Quickly folds up and fits in a car, bus or train for longer commutes! It will fit in elevators, or easily carried up stairs; but best of all, if the battery runs out... you can still run it under Human Power and get a great workout too!
Its hardly the best desgin,Too wide on tight sidewalks,Awkward standing position for going in a straight line,the side to side pumping position makes it unsuitablefor road use.Its hard to beat a simple 2 wheel electric scooter, like the goped esr.