When Drivers Aren't Watching: The Growing Danger of E-Bike Accidents to San Diego County's Children

Walk or drive through almost any neighborhood in San Diego County today and you'll see them: kids as young as ten or eleven gliding along at 20, 25, even 28 miles per hour on electric bikes, backpacks on, headphones in, weaving through intersections built decades before anyone imagined a "bicycle" that could move as fast as a moped. E-bikes have become the preferred way for a huge share of San Diego's kids to get to school, the beach, and each other's houses. The problem is that the roads, the drivers, and in many cases the children themselves have not caught up to how fast, and how dangerous, this new normal has become.

Local hospitals, county health officials, and city leaders are now sounding a unified alarm. And while much of the public conversation has focused on the riders — their speed, their helmet use, their age — a critical piece of the danger sits squarely with the drivers sharing the road with them. When a driver glances down at a phone for even two or three seconds, a child who was three car-lengths away can suddenly be in the crosswalk directly in front of the bumper. That is the reality behind the numbers below.

The E-Bike Boom, By the Numbers

The growth in e-bike use across California has been described by researchers as nothing short of exponential. A study out of UC San Diego School of Medicine, led by Dr. John Austin and Dr. Jay Doucet and published in July 2026 in Trauma Surgery and Acute Care Open, tracked reported e-bike collisions statewide climbing from just 2 in 2018 to 1,506 in 2024 (UC San Diego Today). Over that same period, the study analyzed 4,035 e-bike collisions against 58,332 traditional bicycle collisions and found that e-bike riders were disproportionately young: children 14 and under made up 15.6% of injured e-bike riders, compared with 10.2% of injured riders on standard bicycles. E-bike crashes also produced more moderate-to-severe injuries than traditional bike crashes, and the researchers flagged a significant jump in e-bike-related deaths in 2024.

San Diego's own city data tells the same story at a local level. San Diego Police Department figures show reported e-bike collisions citywide nearly quadrupling in five years — from 23 in 2021 to 84 in 2025 — with Pacific Beach and Mission Beach alone accounting for roughly 13% of all incidents over that stretch (Axios San Diego).

San Diego's Emergency Rooms Are Feeling It

Nowhere is the trend more visible than in the county's trauma bays. Rady Children's Hospital, the region's dedicated pediatric trauma center, recorded just 3 e-bike-related trauma activations in 2021. By the end of 2025, that number had climbed to 262, with total e-bike-related injury visits to the hospital topping 1,000 patients that year (KPBS). Physicians there note that in 2017, e-bikes were involved in less than 2% of serious crashes among riders under 18; by 2023, that share had jumped to nearly 40% of serious youth crashes. The hospital's typical e-bike patient is between 12 and 16 years old — but the youngest treated was just 4 (inewsource).

The County of San Diego's Health and Human Services Agency issued a formal public health alert in May 2026 after tallying 865 emergency department visits and 186 hospitalizations tied to e-bike accidents in 2024 alone. "Far too many kids are ending up in our emergency rooms, and that's not acceptable," said County Supervisor Terra Lawson-Remer. County Public Health Officer Dr. Sayone Thihalolipavan added that "deceivingly powerful e-bikes pose a significant danger to children" (Times of San Diego).

Why Children Are Especially Vulnerable

Part of the danger is mechanical: a standard bicycle tops out around 8 to 9 miles per hour for most young riders, while e-bikes routinely travel 20 to 28 miles per hour, and some modified or throttle-based models can reach 45 to 50 miles per hour (KPBS). As San Diego City Councilmember Raul Campillo put it, a kid who hits a pothole on a traditional bike ends up with "road rash and scraped up," while the same mistake on an e-bike can mean "severely broken bones" (Axios San Diego).

That speed differential matters enormously to the drivers around them, because it collapses the reaction window a driver has to notice a child and stop. A driver scanning for hazards at "bicycle speed" is watching for someone who closes distance slowly. A child on an e-bike closes that same distance in a fraction of the time — often before a driver who glanced at a text message, a dashboard screen, or a phone in their lap has looked back up at the road.

The Driver's Side of the Equation

Distracted driving remains one of the most persistent, well-documented causes of serious and fatal crashes in the United States, and it does not spare cyclists. Nationally in 2024, distraction was a factor in 8% of all fatal crashes, contributing to 3,208 deaths; of those, 639 were nonoccupants — pedestrians and cyclists struck while outside a vehicle — including 75 pedalcyclists killed in distraction-affected crashes (NHTSA).

California's own numbers echo the pattern. In 2023, distracted driving contributed to 158 traffic deaths statewide, a 6.8% increase from the year before, and vehicle-versus-pedestrian collisions made up 25.9% of all distraction-related fatal and serious-injury crashes. San Diego County recorded 45 serious injuries linked to distracted driving that year — the second-highest county total in the state, behind only Los Angeles (SafeTREC, UC Berkeley).

Layer those statewide distraction statistics on top of San Diego's e-bike boom, and the danger for young riders becomes clear. Local crash records bear it out directly: in May 2026, a 12-year-old boy suffered life-threatening injuries in Carmel Valley when his e-bike collided with a car (Times of San Diego; Axios San Diego). In Chula Vista, fire department records for fiscal year 2025 show 9 of 16 responded e-bike collisions involved a motor vehicle (inewsource). Every one of those incidents represents a moment when a driver's attention — or lack of it — determined whether a child made it home safely.

It is also worth noting what local crash-fault data does not show. Carlsbad's own tracking of 220 e-bike crashes between 2022 and 2025 attributed 63% to rider error — meaning well over a third of crashes were not the child's fault at all, a substantial share in which the other party on the road, very often a driver, bore responsibility (inewsource). When a driver is checking a phone, adjusting a GPS, or simply not scanning the road the way the law requires, a fast-moving young rider has almost no ability to compensate for that driver's inattention.

What This Means for San Diego Families

City and county officials are responding with new rules aimed at riders: proposed bans on e-bike use for children under 12, mandatory safety training, and requirements for helmets certified to the newer NTA 8776 standard designed for higher-impact e-bike crashes (KPBS). Those measures may help. But no amount of rider training changes the fact that a driver behind the wheel of a two-ton vehicle carries the greatest responsibility to watch the road, especially in neighborhoods where kids on e-bikes are now a routine part of traffic.

For parents, that means a few practical steps remain essential regardless of what new local ordinances take effect: know your child's real riding speed and route, insist on a properly fitted helmet every single ride, and talk openly with your kids about how differently an e-bike behaves compared with the bicycle you may have grown up on. It also means understanding that when a child is hurt in a collision with a car, the law does not simply assume the young rider was at fault. If a driver was texting, distracted, speeding, or otherwise failed to exercise the attention California law requires around cyclists and pedestrians, that driver can and should be held accountable for the harm caused.

San Diego's e-bike surge isn't slowing down, and neither, unfortunately, is the number of children ending up in the county's emergency rooms because of it. Real change will require safer riding habits, better infrastructure, and — just as importantly — drivers who put the phone down and treat every child on an e-bike with the same caution they'd want for their own kids.

Sources

1. UC San Diego Today — "UC San Diego Study Finds An Exponential Increase in E-Bike Injuries in California"

2. Axios San Diego — "E-bike crashes are surging in San Diego"

3. KPBS — "San Diego considers new e-bike rules as pediatric injuries surge"

4. inewsource — "As e-bike injuries spike, here's how lawmakers try to keep up"

5. Times of San Diego — "County issues safety alert, calls for help from medical professionals as e-bike injuries surge"

6. NHTSA — "Distracted Driving in 2024" (Traffic Safety Facts Research Note)

7. SafeTREC, UC Berkeley — "2025 SafeTREC Traffic Safety Facts: Distracted Driving"

This article is provided for informational purposes and does not constitute legal advice. If your child has been injured in an e-bike accident involving a motor vehicle, an attorney can help you understand your family's rights.

Michael G. Wales is an attorney with Counterpoint Legal in San Diego and is known as The Child Injury Attorney.  You can reach Mike at 619-493-1700 or at michael@thechildinjruattorney.com.