NEW YORK (AP) — As traumatic injuries and deaths surge among children involved in crashes on e-bikes and other electrified vehicles, one California prosecutor is cracking down by pursuing criminal charges against some of the young riders’ parents.

It is just one way officials across the country are trying to tackle the growing issue, while families navigate a patchwork of local laws and guidance on what kind of souped-up cycles and scooters are safe or even legal for their kids to ride.

New York City’s mayor recently sent cease-and-desist notices to dozens of online retailers for selling products marketed as “e-bikes” that aren’t street legal after a 17-year-old died in a crash on an illicit vehicle. In neighboring New Jersey, new regulations require e-bike riders to be at least 15 and obtain a license and vehicle registration.

But do the measures hit the mark? Cycling advocates worry regulations might be too broad — demonizing low-powered e-bikes instead of speedier motos — while some parents question whether localized, piecemeal strategies are enough.

Monica Stafford, a San Francisco-area mother whose teen daughter fractured her skull falling off an e-bike, said officials are “missing the mark” if they’re seeking to lay the blame solely on parents. The San Rafael resident said a unified, national set of rules is needed.

“We’re in a total Wild West of laws,” Stafford said. “Being for common sense laws doesn’t mean that you’re against e-bikes, just like you can be for cars but not think that it’s safe to put keys in the hands of a 10-year-old.”

E-bike injuries disproportionately impact children, experts say

The two-wheeled machines have become nearly ubiquitous in recent years, from packs of teens zipping around California beach towns to the army of delivery drivers dodging traffic on the congested streets of Manhattan.

Hospital visits for injuries from e-bike, e-scooter and other motorized rides have, as expected, soared as they have grown in popularity, study after study has shown. But researchers stress that the more concerning trends are the severity of the injuries and the fact that they’re especially pronounced among children.

“The big takeaway is that people are generally more severely injured than they would be if they were on a traditional, pedal bicycle,” said Dr. John Austin, a doctor at the University of California San Diego School of Medicine who led a recently published statewide study. “Overall, these patients tend to be younger, they tend to be unhelmeted and, in turn, be more severely injured.”

Recent youth deaths prompt officials to take action

Most e-bikes are classified as nonmotorized vehicles akin to traditional bicycles under federal law, meaning riders don’t need a license, insurance or to even wear a helmet. Most states, though, have enacted additional requirements for higher powered machines, including minimum age and helmet requirements.

In New York City, the death of 17-year-old just steps from City Hall has spurred renewed debate about the bikes. Gabriel Nacato had been riding a vehicle advertised as an “e-bike” but wasn’t legal on city streets.

Earlier this month, Mayor Zohran Mamdani warned more than 40 online retailers, including Amazon, Walmart and Target, that they could face fines of up to $2,000 for each sale of an e-bike that exceeds city regulations.

New York state requires riders of all forms of e-bikes to be at least 16, and New York City imposes additional restrictions, including a 15 mph (24 kph) speed limit. California, in contrast, has no statewide minimum age for lower-powered bikes, though riders must be at least 16 to use e-bikes that can go up to 28 mph (45 kph).

New Jersey and Illinois are among the states that have enacted statewide regulations recently, and Massachusetts is weighing measures. Meanwhile, Florida Gov. Ron DeSantis in June vetoed a 10 mph (16 kph) speed limit and other e-bike regulations, saying the measures would lead to “enhanced surveillance” of citizens.

Other jurisdictions seek to hold parents accountable

In Southern California, Orange County District Attorney Todd Spitzer says his office has more than two dozen open investigations against parents after launching a new unit focused on e-bike and e-motorcycles cases involving children.

The office has already brought charges against four, including the mother of a 14-year-old boy accused of killing an elderly pedestrian while riding an e-motorcycle.

That mother’s attorney declined to comment, but Mitchell Krems, the lawyer for another parent, dismissed the charges against his client as “absurd,” suggesting his client was being made a “scapegoat.”

Richard Eyssallenne pleaded not guilty to child endangerment charges after prosecutors say he bought his 12-year-old son an e-motorcycle and helped him illegally modify it to make it go faster. The boy ran through a red light and was injured by a car.

Other jurisdictions have also taken steps to hold parents liable. In Ohio, a Columbus suburb recently issued new e-bike rules making it clear that parents who knowingly allow their children to break the rules are subject to the same penalties as the rider.

Cycling advocates blame electronic motorcycles

PeopleForBikes, a national bicycle advocacy group that tracks state e-bike regulations, stressed that many of the problematic vehicles are actually electronic motorcycles with heavy frames, sturdy tires and sizable motors that are falsely marketed as e-bikes.

Lower-powered and pedal-assisted e-bikes have been used safely for decades on U.S. streets and are key to reducing society’s reliance on cars, advocates argue.

“Many of the dangerous behaviors people cite — running red lights, riding on sidewalks, not wearing helmets — are already illegal,” added Chloé Lauer, executive director of the San Diego County Bike Coalition. “We’d rather see those laws enforced than add new restrictions that limit mobility for kids who are riding responsibly.”

Anya Dalal, a San Francisco-area high school senior who has been advocating for better safety measures, believes the problem requires multiple solutions, including setting age limits.

“It should be a mix of parental accountability, accountability from the manufacturers and retailers and also education for kids to understand e-bike laws and road rules,” said the 17-year-old Hillsborough resident.

Sharon Franke, a San Diego-area mother, agreed, though she said the first step starts at home, with parents doing their research, accompanying their children on rides and reinforcing safety once they set off on their own.

“We want them to have fun, but we also want them to come back safe and we don’t want them to hurt anybody,” she said as her 15- and 12-year-old sons prepared to attend a safety training last weekend. “How do you balance all of it? It’s just overwhelming right now.”

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Associated Press reporters Amy Taxin and Christopher Weber in California and Anthony Izaguirre in New York contributed to this story.

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Follow Philip Marcelo at https://x.com/philmarcelo

Philip Marcelo, The Associated Press