Sunday, March 18, 2012

Electric Bicycle Pi: pedal drive and electric motor


018324_151107105142Hybrid bikes with pedal and electric drive are well suited for suburban residents, who often make trips to work in the city. With the help of a small amount of battery power to strengthen your efforts to pedaling, you will be able to overcome the longer distances with greater speed, without causing damage to the environment. But such trips will cost you at virtually no cost. Electric Bicycle Pi - a wonderful copy, laced with modern technology and capable of delivering nearly maximum power and speed at which the horse is allowed without a permit ( at least in California, USA).





The first striking feature of this bike is an unusual and distinctive for its arch -supporting frame. Consisting of 60% from recycled aluminum, elongated tubular frame can hold nickel metal hydride batteries, electronics, and control cable. Thus, the frame is not anything extra that would spoil the look of the bike.





Top speed is limited to 32 CPM, and when working on one watt electric motor 36V/500, you can drive 40 miles, not bothering to rotation of the pedals. The inclusion of electric transmission occurs by means of a throttle. The motor also acts as a generator, so the torsional pedaling or braking work to extend the battery life.





A small nickel metal hydride battery is recharged in about two and a half hours and the maximum distance you can travel on a single charge - 48 miles. Extra battery ($ 750 ) doubles this distance. But with the help of pedals, this distance can be substantially increased.





The seat can be adjusted to different heights and can be set according to your taste, and the suspension travel is 85 mm, which will also provide a comfortable ride.





Instead of the usual gear is used continuously variable planetary transmission NuVinci. Thus, the increase or decrease the load is gradually and with the help of the handle with a switch. Simple, intuitive and effective.





Other versions of this electric bikes - Pi2, a bed- landing variant, and two-wheel drive. Front in this model uses a 14- speed transmission Rohloff and 8- speed automatic, front Shimano Cyber ​​Nexus. A prototype of Pi-E - a ' motorcycle ' version, with engine capacity of 15 liters. with. , Charging from the wall outlet and a replaceable battery. Almost two times heavier than Pi, with a weight of 55 pounds, Pi-E to reach speeds of 135 CPM and will appear on the roads of Europe after the show next year.





'Green' vehicles can be purchased for green money. $ 7,500 for the base electric bikes Pi and $ 9,500 for a model Pi2. Price Pi-E is not yet known.





hizone. info.

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