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Sharing bike has become a new way of traveling ,but normal sharing bike is not perfect, such as uncomfortable, riding heavily on uphill and appearance is not very attractive. Based on the above points, I designed a power-assisted, power-saving function of the movement shared bicycle which can be automatically shared bike uphill downhill and Ping Road, the way of travel, downhill when the fast-moving motor for power-saving, uphill through the charge current in the uphill step not moving the case of electric power, and in Ping Road, but also to achieve a normal ride, the effect of comfortable sports. So people cycling will be convenience.