After years of unsuccessful attempts at inventing a two-wheeled form of propulsion, Wilbur and Orville Bike finally realized the problem was that their prototypes were all screwed to the gymnasium floor. Achieve functional mobility with today's Groupon: for $49, you get $400 toward an electric bike at Small Planet E Vehicles, located in Longmont and Fort Collins.

The bike-brains at Small Planet E Vehicles build cycles with electric motors to send riders zipping through the city at high velocities. The diverse collection of eco-friendly velocipedes ranges from the Strida 5.0 Folding Bike ($770) to the top-of-the-line A2B Metro EBike ($2,699). E-cycles run on rechargeable batteries and can travel at speeds up to 20 miles per hour, ideal for zipping to work or smuggling an extraterrestrial from scientists. Save time, money, and the planet with an e-bike, which can be fully charged at five cents a pop.