They’re better for the environment than a gas-guzzling car, but the other big advantage of commuting every day on an electric bike is that they’re easier to park. With Poimo, a prototype inflatable e-bike created at the University of Tokyo, you don’t even need to find a bike rack when you get to work, just an empty backpack to stash your ride. Inflating the Poimo (short for Portable and Inflatable Mobility) is no more challenging than inflating an air mattress.