Electric Bikes Are Swarming Of all the things that have changed in China over the past 30 years, transportation has undergone one of the most obvious of transformations. Where city streets once swarmed with bicycles, they are now full of automobiles. Cars clog intersection and expressways. Their exhaust clouds the sky and the air is full of the sound of horns. But zipping through the congestion is the vanguard of another transportation revolution: vehicles that use no gas, emit no exhaust and are so quiet they can surprise the unwary pedestrian.
