Electric bikes have never been cool. After all, what self-respecting rider would let a battery do all the work? But fuel-cell technology, which uses pollution-free hydrogen gas to generate an electric current, could ignite electric-bike sales. The first prototype, from Italian bikemaker Aprilia, stores compressed hydrogen in a 2-liter metal canister housed in the frame. With a top speed of 20 m.p.h., the bike won't win the Tour de France. But it weighs 20% less than regular electrics and travels twice as far, about 43 miles, before it needs more gas. Now that's cool.
Availability: In 2003, for approximately $2,300
To Learn More: www.apriliaenjoy.com
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