Electrobike Pi: your pedal power gets an electric boost
Pi-E prototype
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Article Summary
Electric/pedal power hybrid bicycles make a lot of sense as commuters. With a small amount of battery power to augment your pedaling efforts, you can achieve extra speed and distance while leaving a minimal environmental footprint and paying next to nothing per kilometer. The Electrobike Pi is a fine example of the state of the art: packed with nifty technology in a design marked by its distinctive arch frame, the Pi is speed limited to 20 mph when powered by the 36V/500 watt electric motor alone - slotting neatly under the maximum power and speed figures allowable in California without a motorcycle license - and you can travel around 25 miles without troubling the pedals.
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