What Happened
Electric two-wheeler sales have seen significant growth since the start of the decade, following a pandemic-induced surge in interest, as noted by Wired. However, sales have recently dipped compared to two years ago, while riding injuries—particularly among children—have increased, prompting lawmakers to seek tighter controls. A major part of the confusion stems from consumers, retailers, and lawmakers blurring the lines between standard electric bicycles and much faster vehicles known as e-motos. According to PeopleForBikes, the trade association representing the U.S. bicycle industry, generic use of the term "e-bike" incorrectly lumps together distinct vehicle categories like electric bicycles, mopeds, scooters, dirt bikes, and motorcycles.
The Details: Classes, Power, and Speed
The electric bicycle industry relies on a three-class system to differentiate capabilities:
- Class 1: Motors activate only when the rider pedals, and the assist cuts off at 20 mph.
- Class 2: Features pedal-assist as well as a throttle, allowing travel up to 20 mph without pedaling.
- Class 3: Features a more powerful pedal-assist that stops helping at 28 mph (or 25 mph in certain areas).
Thirty-nine U.S. states have incorporated these classes into their laws. Generally, Class 3 riders must wear helmets and be at least 16 years old, while some states enforce a minimum age of 14 or 15 for any e-bike. Most states treat e-bikes like standard bicycles without requiring a license or registration, though exceptions exist. For instance, New Jersey requires registration and licensing for all e-bikes alongside insurance for Class 3 models, while Anchorage requires licenses for e-bikes exceeding a sustained output of 750 watts.
When shopping, motor wattage indicates capability: 250-watt motors suit entry-level commuting and flat terrain; 500-watt motors reach roughly 20 mph via throttle and handle moderate hills; and 750 watts generally serves as the legal street-appropriate limit for handling heavy loads and steep inclines. Devices rated at 1,000 watts or higher are classified as e-motos or mopeds rather than e-bikes, packing motor powers between 1,000 and 6,000 watts with top speeds reaching up to 60 mph (or 65 mph according to PeopleForBikes). E-motos depend entirely on throttles and frequently lack functional pedals, sometimes featuring fake ones added by manufacturers or riders to mimic e-bikes.
Visual and Physical Differences
According to Wired, physical traits distinguish the two vehicle categories. E-bikes showcase a slender, traditional bicycle frame where observers can see clear daylight through the body, accompanied by slimmer tires and rear fenders hugging the back wheel. Conversely, e-motos feature chunkier builds with wide midsections, massive battery packs that block daylight, substantial coil shocks, wide knobby tires, high-sitting rear fenders, and fixed foot pegs reminiscent of motorcycles.
Legal Requirements and Modifications
Because e-motos are significantly more powerful, many states regulate them as motor vehicles, requiring registration, insurance, and a driver's or motorcycle operator's license. Permits or junior licenses can often be obtained at ages 16 or 17, while full licenses typically require legal adulthood. In contrast, legal electric bicycles must have operable pedals, motors of 750 watts or less, and top out at 20 mph when powered solely by the motor.
Complications also arise from modifications. Many e-bikes feature electronic speed limits that can be bypassed via software tweaks or physical adjustments like moving sensors and cutting wires, turning a street-legal bike illegal. PeopleForBikes cautions that some manufacturers market e-motos with pedals and "off-road" modes that can be easily unlocked to achieve excessive speeds, blurring regulatory lines.