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This is an electric bicycle that can generate electricity itself. There are magnets in the back wheel rim with positive and negative direction staggered. In addition, there are Induction coils in the back wheel brace. Thus, the back wheel would rotate continuously when the user is riding, leading to electromagnetic induction effect that causes the Induction coils to generate current back to the battery. generate electricity for the battery, reduce power consumption, and achieve energy conservation. The user can charge the battery by pedaling even when the battery is depleted. The bicycle can also be charged by a common plug.