One of them is the bike-car hybrid, and the latest model to come to our attention is Hopper, a compact, lightweight, and fully-enclosed tricycle ... front and a 10-inch scooter tire in the rear.

The pedal-electric, semi-enclosed, bicycle/car-hybrid thingies ... 20-inch bicycle tires in the front and a 10-inch scooter tire in the rear Hopper buyers can opt for a Passenger model, which ...