Michael Pines | November 5, 2026 | Bicycle Accident \ Personal Injury
Electric bikes, commonly known as e-bikes, have become an increasingly popular way to get around San Diego. From commuting to school and work to cruising through neighborhoods and coastal communities, e-bikes offer a convenient, affordable, and environmentally friendly alternative to driving. However, their growing popularity has brought a concerning increase in serious accidents and injuries, particularly among children and teenagers.
Recent research from UC San Diego reveals that e-bike collisions across California have increased dramatically in just a few years. Local hospitals are also reporting alarming numbers of young riders suffering traumatic injuries, raising questions about rider safety, parental responsibility, and whether existing regulations are enough to prevent future accidents.
In response, the City of San Diego has introduced new e-bike safety regulations, while San Diego County is developing a regional injury warning system to help identify dangerous locations and emerging crash trends.
Quick Highlights
- E-bike accidents are surging across California: A 2026 UC San Diego study found that reported e-bike collisions increased from just two in 2018 to more than 1,500 in 2024.
- Children and teenagers face significant risks: Rady Children’s Hospital in San Diego reported an increase in pediatric e-bike trauma cases from three in 2021 to 262 in 2025.
- E-bike injuries tend to be more severe: Research shows that moderate-to-severe injuries are more common in e-bike collisions than in traditional bicycle crashes, including traumatic brain injuries, fractures, and internal injuries.
- San Diego has introduced new age restrictions: Children under 12 are prohibited from operating Class 1 and Class 2 e-bikes within city limits. California law already prohibits children under 16 from operating Class 3 e-bikes.
- New safety regulations are now being enforced: Following a 60-day warning period, San Diego authorized citations beginning October 12, 2026, with $25 fines for violations of the new age restriction and an option to complete an approved safety course instead.
- San Diego County is taking additional action: In October 2026, county supervisors approved a regional E-Bike Injury Warning System designed to identify dangerous locations, monitor injury patterns, and support faster safety interventions.
E-Bike Accidents in California Have Increased Dramatically
A July 2026 study conducted by researchers at the University of California San Diego highlights just how quickly e-bike accidents have increased throughout the state.
Published in the medical journal Trauma Surgery & Acute Care Open, the study examined California Highway Patrol collision records between 2018 and 2024, comparing e-bike crashes with accidents involving traditional bicycles.
The researchers identified 4,035 e-bike collisions and 58,332 traditional bicycle collisions over the study period. The published paper reported 1,566 e-bike collisions in 2024, a dramatic increase from the beginning of the study period. Meanwhile, traditional bicycle collision numbers remained relatively stable or declined.
The study also revealed several concerning differences between e-bike and traditional bicycle crashes.
- More Severe Injuries: Approximately 15.8% of injured e-bike riders experienced moderate-to-severe injuries, compared to 11.9% of traditional bicyclists.
- Younger Riders: Children aged 14 and younger accounted for 15.6% of injured e-bike riders, compared to 10.2% of injured traditional bicyclists.
- Unsafe Riding Behaviors: E-bike crashes were more frequently associated with unsafe speeds and improper turning violations.
These findings demonstrate that although e-bikes offer many transportation benefits, their increased speeds and heavier construction can introduce risks that are particularly challenging for young or inexperienced riders.
The study’s findings also reinforce the importance of rider education, proper safety equipment, and infrastructure improvements. While increasing e-bike popularity contributes to the growing number of reported crashes, researchers identified meaningful differences in injury severity that warrant additional attention.
Source: An Exponential Increase in E-Bike Injuries in California – Trauma Surgery & Acute Care Open.
Pediatric E-Bike Injuries Are Becoming a Major Concern in San Diego
Perhaps the most alarming local trend involves the growing number of children requiring emergency medical care after e-bike accidents.
According to data cited by the San Diego County Board of Supervisors, Rady Children’s Hospital experienced a dramatic increase in pediatric e-bike trauma cases: 262 pediatric e-bike trauma cases in 2025 compared to just 3 in 2021.
Hospital officials have identified e-bike incidents as the second-leading cause of trauma activations at Rady Children’s Hospital, with many injured riders falling between 13 and 14 years old.
These incidents can involve considerably more than minor scrapes or bruises. Pediatric trauma specialists report treating children for serious injuries, including skull fractures, brain bleeding, spinal injuries, and broken bones.
For families, the consequences can include emergency surgery, hospitalization, rehabilitation, and potentially long-term physical or cognitive complications.
The growing severity of these injuries has prompted San Diego medical professionals and public officials to advocate for stronger safety education, age-appropriate restrictions, and improved enforcement of existing traffic laws.
Why Are E-Bike Injuries Often More Severe Than Traditional Bicycle Injuries?
Although e-bikes resemble traditional bicycles, several important differences can make accidents more dangerous.
Rapid Acceleration and Higher Speeds
Unlike traditional bicycles, which rely entirely on physical pedaling, e-bikes use electric motors to assist or propel riders.
Class 1 and Class 2 e-bikes can provide motor assistance up to 20 mph, while Class 3 e-bikes can provide assistance up to 28 mph.
Some throttle-equipped e-bikes can accelerate rapidly, allowing inexperienced riders to reach relatively high speeds before they have fully developed the necessary braking, steering, and hazard-recognition skills.
Higher speeds also reduce the time available to react to unexpected obstacles, pedestrians, or vehicles entering the roadway.
Heavier Bikes Can Be More Difficult to Control
Electric bicycles typically weigh more than traditional bicycles because of their motors, batteries, and reinforced components.
That additional weight can make an e-bike more difficult to maneuver, particularly during sudden turns, emergency braking, or situations where a rider loses balance.
For younger riders, managing a heavier bicycle at higher speeds can create additional challenges.
Limited Riding Experience
Many younger e-bike riders have not yet developed the judgment, coordination, or road awareness necessary to navigate busy streets safely.
They may underestimate stopping distances, misunderstand right-of-way rules, or fail to recognize how quickly dangerous situations can develop.
This is especially concerning when children share roads with passenger vehicles, SUVs, and commercial trucks.
Lack of Proper Safety Equipment
Helmets can significantly reduce the risk of certain head injuries, but riders may neglect to wear them or use helmets that do not fit properly.
When a collision occurs at higher speeds, the resulting injuries may include traumatic brain injuries, facial fractures, broken bones, road rash, and internal bleeding.
Importantly, not every device marketed as an e-bike is legally classified as one. More powerful electric motorcycles can reach considerably higher speeds and may be subject to different licensing and operating requirements.
San Diego’s New E-Bike Safety Regulations Took Effect in August 2026
Recognizing the increasing number of serious e-bike injuries, the City of San Diego approved new safety regulations in June 2026.
The ordinance officially took effect on August 13, 2026, followed by a 60-day warning and education period. Beginning October 12, 2026, law enforcement was authorized to issue citations for violations.
The regulations were made possible through California Assembly Bill 2234, which established the San Diego Electric Bicycle Safety Pilot Program and allows local governments within San Diego County to restrict younger riders’ use of certain e-bikes.
Here’s what San Diego riders and parents should know.
New Minimum Age Requirements
The regulations establish a minimum age of 12 for operating Class 1 and Class 2 e-bikes within the City of San Diego.
Under the current rules:
| E-Bike Classification | Minimum Rider Age | Maximum Motor-Assisted Speed |
| Class 1 – Pedal-assist | 12 years | 20 mph |
| Class 2 – Throttle-assist | 12 years | 20 mph |
| Class 3 – Higher-speed pedal-assist | 16 years | 28 mph |
Children younger than 12 may continue riding traditional pedal bicycles, but they cannot legally operate Class 1 or Class 2 e-bikes within the city.
The existing statewide minimum age of 16 for Class 3 e-bikes remains unchanged.
These restrictions are intended to prevent younger children from operating motor-assisted bicycles before developing the coordination and experience necessary to ride safely.
Stricter Helmet and Passenger Rule Enforcement
San Diego’s ordinance also reinforces California’s existing helmet requirements and passenger restrictions.
Under California law, all riders younger than 18 must wear a properly fitted and fastened bicycle helmet. Class 3 e-bike operators and passengers must wear helmets regardless of age.
Additionally, passengers are only permitted when an e-bike is specifically designed and manufactured to carry more than one person and has an appropriate separate seat for each passenger.
Allowing someone to ride on the handlebars, frame, or another surface not designed for passengers can create significant safety hazards.
$25 Fines and an Educational Alternative
Violations of San Diego’s new under-12 e-bike restriction can result in a $25 fine.
However, the city has incorporated an educational alternative intended to encourage safer riding rather than relying exclusively on financial penalties.
Eligible cited riders can complete an approved online e-bike safety course and submit proof of completion within 120 days to have the applicable fine dismissed.
Parents or legal guardians of minors may also be held responsible for the fines associated with violations of the new age restriction.
The goal is to encourage families to better understand e-bike classifications, traffic regulations, and safe riding practices before an accident occurs.
Source: City of San Diego – New E-Bike Regulations and San Diego Police Department – E-Bike Laws & Safety Tips.
San Diego County Approves Regional E-Bike Injury Warning System
Beyond introducing new riding restrictions, San Diego County is also working to improve how e-bike accidents and injuries are tracked.
On October 6, 2026, the San Diego County Board of Supervisors unanimously approved a proposal to create a regional E-Bike Injury Warning System.
The system is designed to address a significant challenge facing public health and transportation officials: the lack of timely, comprehensive information about where e-bike crashes are occurring and who is being injured.
Currently, statewide injury data can take as long as 14 months to become available to local officials, potentially delaying meaningful safety improvements.
The proposed system will collect and combine more timely information from local hospitals, trauma centers, emergency departments, emergency medical services, law enforcement agencies, and other regional partners.
Officials plan to track several important factors, including rider age, accident location, helmet use, e-bike classification, injury severity, and medical outcomes.
Identifying Dangerous E-Bike Accident Hot Spots
One of the system’s primary goals is to identify areas where e-bike crashes and serious injuries are occurring more frequently.
By analyzing regional crash patterns, local officials may be able to recognize dangerous intersections, roadways, or routes used by younger riders.
This information could help guide infrastructure improvements, targeted enforcement, educational campaigns, and other preventative measures.
The system could also help officials determine whether newly implemented safety regulations are reducing injuries over time.
As of October 2026, the program has been approved for development; its full effectiveness will depend on implementation and the quality of the information collected.
What Can San Diego Parents and E-Bike Riders Do to Prevent Accidents?
While new regulations and improved accident reporting represent important steps forward, preventing serious e-bike injuries also requires responsible riding practices and greater awareness from motorists.
Parents should carefully consider their child’s age, experience, and ability to handle a motor-assisted bicycle before purchasing an e-bike.
Choosing the appropriate bike classification, ensuring a properly fitted helmet is worn, and providing supervised riding instruction can help young riders develop safer habits.
Riders should also understand the rules of the road, including obeying traffic signals, stopping at intersections, yielding when required, and traveling in the same direction as traffic.
Families can take advantage of the free California Highway Patrol Online Electric Bicycle Safety & Training Course to better understand the risks and responsibilities associated with riding an e-bike.
Motorists also play a critical role in preventing these accidents. Drivers should watch carefully for bicyclists, check blind spots before turning or changing lanes, maintain safe passing distances, and remain especially alert near schools and residential neighborhoods.
Ultimately, improving e-bike safety requires a combination of responsible riding, attentive driving, enforcement, education, and safer transportation infrastructure.
Who Is Liable When an E-Bike Accident Causes Serious Injuries?
Although some e-bike accidents involve rider errors, others result from negligent drivers, unsafe roadway conditions, defective equipment, or a combination of contributing factors.
When an e-bike rider is seriously injured because of another party’s negligence, they may have grounds to pursue a personal injury claim.
For example, a motorist who fails to yield, makes an unsafe turn, drives while distracted, or strikes a bicyclist may be held responsible for the resulting injuries.
Depending on the circumstances, compensation may be available for medical expenses, rehabilitation, lost income, future medical care, pain and suffering, and other damages.
California follows a pure comparative negligence system, meaning an injured person may still recover compensation even if they were partially responsible for the accident. However, their compensation can be reduced based on their percentage of fault.
An e-bike rider’s violation of a safety regulation does not automatically eliminate their right to pursue a personal injury claim. Likewise, parental responsibility for an e-bike citation is separate from determining civil liability for injuries arising from a crash.
Because e-bike accidents can involve complicated questions about speed, right of way, bicycle classifications, and traffic laws, determining liability often requires a careful investigation.
For families whose children have sustained serious injuries, understanding their legal options can be an important part of protecting their future.
Injured in a San Diego E-Bike Accident? Pines Salomon Can Help
As electric bicycles become more common throughout San Diego, understanding their risks and following the latest safety regulations is increasingly important.
Unfortunately, even responsible riders can suffer serious injuries when motorists or other parties act negligently.
At Pines Salomon Personal Injury Lawyers, our San Diego personal injury attorneys understand the devastating physical, emotional, and financial consequences that serious bicycle and traffic accidents can have on victims and their families.
With more than 80 years of combined legal experience and over $100 million recovered for injured clients, our team is committed to helping accident victims understand their rights and pursue the compensation they deserve.
If you or a loved one has suffered serious injuries in an e-bike accident caused by someone else’s negligence, contact Pines Salomon Personal Injury Lawyers to schedule a free consultation.