Optimistic Paranoid said:
...
They have motors. So are they bicycles or motor vehicles? If they are motor vehicles, they need license plates and insurance to use them on public streets.
I want to make a general distinction for clarity's sake: engines are
combustion-driven, motors are
electrically-driven.
As for laws in the U.S. regarding both combustion- and electrically-driven bicycles, this should clear things up a bit:
United States (
combustion-driven)
Federal law
In the United States, federal law governing ICE motorized bicycles is subject to interpretative rulings by the National Highway Traffic Safety Administration (NHTSA) at the United States Department of Transportation. Under current NHTSA rules, a "motor-driven cycle" (a definition that includes a two-wheel vehicle such as a bicycle with an add-on ICE engine of five brake horsepower or less[25]) and a speed capability of more than 20 miles per hour lacks both a Vehicle Identification Number (VIN) and standard onroad safety equipment such as mirrors, turn signal lamps, side marker lamps, and stop lamps, then the vehicle shall not be considered a "motor vehicle" as defined by DOT/NHTSA regulations, but instead is defined as an off-road vehicle (since the lack of a VIN and on-road equipment indicates that a vehicle was not manufactured primarily for use on public roads.)[25] Such off-road vehicles are considered to be neither motor vehicles nor motorcycles, as those terms are defined under federal law.[25] Under present-day NHTSA rules, the final decision as to whether such federally defined off-road vehicles may be legally operated on public roads is determined by the laws of the state in which the vehicle is being operated.
State and local laws
The legal status of an ICE motorized bicycle in the United States is presently determined by the laws of each state and/or local jurisdiction. Several states allow ICE motorbikes to be operated on roadways without registration, tax, or licensing in the same manner as bicycles, providing certain restrictions are observed.[26] Many state jurisdictions use limits on top speed and/or engine displacement to determine if ICE motorized bicycles require registration and licensing—sometimes as mopeds, sometimes as motorcycles.[27] Some states prohibit the use of motorbikes on multi-use recreational paths or high-speed, limited access roadways, while others require additional safety equipment for operation on public roads, such as wearing a helmet.[28] Many United States cities and other local jurisdictions may impose additional restrictions upon ICE motorized bicycles when operated on public streets and roadways.
United States (
electrically-driven)
In the United States, federal law exempts low-speed electric bicycles from Dept. of Transportation and NHTSA motor vehicle regulations, and they are regulated under federal law in the same manner as ordinary bicycles.[36] The Consumer Product Safety Act defines the term low speed electric bicycle as a two- or three-wheeled vehicle with fully operable pedals and an electric motor of less than 750 watts (1 horsepower), 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 (15 U.S.C. 2085(b)).[36] At the present time, neither the DOT nor the NHTSA restrict the assembly of e-bikes for use on public roads, although commercially manufactured e-bikes capable of speeds greater than 20 mph are considered motor vehicles and thus subject to DOT and NHTSA safety requirements. Consequently, the laws of the individual state and/or local jurisdiction govern the type, motor wattage, and speed capability of e-bikes used on public roadways (see Electric bicycle laws). As long as the bicycle is capable of pedal propulsion, most U.S. states currently do not distinguish between designs that may be self-propelled by the electric motor versus pedal assist designs in which the electric motor assists pedal propulsion by the rider.