....the main event that started the ball rolling was when the bicycle industry was able to get Congress to pass a law amending the Consumer Product Safety Commission’s (CPSC) definition of a “bicycle” to include “low speed electric bicycles” (which implies they are equivalent status by federal regulation) which is defined as 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.”
As pointed out above, the CPSC’s definition of an electric bike centers around a 20 mph limit, with the caveat that this 20 mph must not be exceeded if the electric bike is solely powered by its motor. Accordingly, this definition permits an electric bike which is powered by its rider (with the possible assistance of a motor, making the electric bike what some call a “pedelec”) to travel faster than 20 mph. The distinction is key to a correct interpretation of the CPSC’s definition.