Nominal vs. continuous power
In the United States, Public Law 107-319, established in 2002, defines electric bikes as consumer products, rather than motor vehicles. To distinguish e-bikes from motorized vehicles, the law states that a low-speed electric bicycle is “a two- or three-wheeled vehicle with fully operable pedals and an electric motor of less than 750 watts (1 h.p.), whose maximum speed on a paved level surface, when powered solely by such a motor while ridden by an operator who weighs 170 pounds, is less than 20 mph.”
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