Electric bicycle crashes and injuries are escalating rapidly across California, with a significant number of those injured being children aged 14 or younger, according to a new study from UC San Diego researchers.
The study documented at least 4,035 collisions involving e-bikes in California between 2018 and 2024. While collisions involving traditional bicycles remained relatively stable during this period, e-bike incidents saw a dramatic increase. No e-bike crashes resulting in injuries were recorded in 2018 and 2019; however, by 2024, the number reached 1,566 statewide. The research, published in the journal Trauma Surgery & Acute Care Open, analyzed data from the California Highway Patrol’s Statewide Integrated Traffic Records System and highlighted that e-bike injuries are often more severe than those sustained on conventional bicycles.
The growing popularity of e-bikes has presented challenges for law enforcement, lawmakers, and parents. These bicycles can reach higher speeds than traditional ones, and are frequently operated by young individuals who may lack the necessary experience to manage such speeds safely. Medical officials have observed an increase in e-bike-related injuries in emergency rooms, frequently noting more serious conditions compared to traditional bike accidents.
The study also revealed that injured e-bike riders are generally younger than those injured on traditional bikes. Riders aged 14 and under constituted 15.8% of e-bike injury victims, compared to 10.2% of traditional bicycle injury victims. Furthermore, e-bike riders were more likely to be deemed at fault for crashes and to have committed road violations, such as excessive speed or improper turns.
Law enforcement agencies face difficulties in tracking e-bike incidents due to their novelty and the challenges in data categorization, with e-bike injuries often being grouped with traditional bike accidents. In response to the surge, police agencies have initiated public awareness campaigns and enforcement efforts. California law categorizes e-bikes into three classes based on speed and capabilities, with Class 3 e-bikes requiring riders to be at least 16 years old and wear a helmet. Vehicles exceeding 28 mph or lacking pedal assistance are classified as electric motorcycles, requiring a driver's license and registration.
Recent high-profile crashes and fatalities involving e-bikes have led to arrests and charges against riders and their parents. Incidents in Orange County and Yorba Linda, involving a fatality and serious injury respectively, underscore the serious consequences of misuse, particularly with electric motorcycles often mistaken for e-bikes.
