Derringer Motorized Bicycle
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The Derringer motorized bicycles have a sort of back-to-the-future thing happening. The look is 1920s retro, complete with a brown leather seat and tall white tires. But the engine at the frame’s center is pure modern technology. It’s a 4-stroke, 49cc motor capable of switching instantly between the three modes of operation: full power, engine assisted pedaling, and full manual pedaling. In full power mode the Derringer is works like a motorcycle and is capable of traveling as fast as 40 mph (65 kph) while getting up to 150 mpg. In pedal assisted mode the gas mileage can be as high as 180 mph. That makes the Derringer a way to get around that’s as fuel efficient as it is cool. $3,500