Bicycle and E-Bike Crashes in California: The Rules and Who Pays

You were riding in the bike lane, or crossing at a green light, or coming down a neighborhood street on the e-bike your kid rides to school. A car turned across you, or a door opened, or a driver did not look. Now you have a fractured wrist, a cracked helmet, and an adjuster who wants to talk about your bike before she talks about your injuries.

The first thing that adjuster asks is what kind of bike it was. That is not small talk. California sorts electric bicycles into three legal classes, and 2026 brought new equipment rules, new enforcement powers, and new ways for an insurer to argue you were the one breaking the law. Almost nobody explains this to riders, because the people answering are usually bike shops.

Quick answer: Vehicle Code section 312.5 divides electric bicycles into Class 1, Class 2, and Class 3 by top assisted speed and whether a throttle is allowed, and Vehicle Code section 21213 prohibits anyone under 16 from operating a Class 3 e-bike and requires a helmet for every Class 3 rider and passenger regardless of age. If a device is not within one of those three classes, it is not a bicycle under California law, and the rules for motor vehicles apply to it. When a car hits you while you are riding, your own auto policy's uninsured and underinsured motorist coverage under Insurance Code section 11580.2 usually applies even though you were not in a car.

The Three Classes, and Why Yours Decides the Argument

Every liability fight in an e-bike case starts here. The class determines where you could ride, whether you were old enough, and whether a helmet was required. Get it wrong and you hand the defense a comparative fault argument for free.

• Class 1. How the motor works: Pedal assist only, no throttle propulsion. Top assisted speed: 20 mph. Minimum age: None under state law. Where it may generally ride: Bike lanes, paths, and trails unless a local agency prohibits it.
• Class 2. How the motor works: Throttle can propel the bike without pedaling. Top assisted speed: 20 mph. Minimum age: None under state law. Where it may generally ride: Same as Class 1.
• Class 3. How the motor works: Pedal assist only, speedometer required. Top assisted speed: 28 mph. Minimum age: 16, under Vehicle Code section 21213. Where it may generally ride: Roadways and bike lanes. Generally not on paths or trails unless a local agency allows it.
• Out of class. How the motor works: Exceeds the speed or wattage limits, or lacks operable pedals. Top assisted speed: Not applicable. Minimum age: Not applicable. Where it may generally ride: Not a bicycle. Treated as a motor vehicle, requiring registration and a license.

Two rules sit on top of the table. Every e-bike must have fully operable pedals and a motor of no more than 750 watts. And separately from the Class 3 rule, California requires a helmet for any bicycle rider under 18.

What Changed for 2026

Three pieces of legislation reshaped this area, and each matters to a claim.

Battery and system certification

Senate Bill 1271 (2024) requires that electric bicycles and their batteries sold in California on or after January 1, 2026 be certified to a recognized electrical safety standard and labeled with the testing laboratory and the standard met. It also tightened the definition of an electric bicycle so that a device modified to exceed its class limits cannot be sold or labeled as one.

For an injured rider, that is more than consumer protection. Where a battery fire or an electrical failure caused the crash, the certification history and the seller's compliance become the case, and the defendant is the manufacturer or retailer rather than a driver.

Lighting

Assembly Bill 544 (2025) requires an electric bicycle ridden in darkness to carry a red reflector or a solid or flashing red light on the rear, visible from 500 feet when lit by a vehicle's headlights. In any nighttime case, expect the adjuster to ask what you had on the back of the bike and to argue shared fault if the answer is nothing.

Impound authority

Assembly Bill 875 (2025) authorizes officers to impound a Class 3 e-bike operated by a person under 16, along with certain over powered devices that do not qualify as e-bikes at all. An agency may condition release on proof that the rider completed an e-bike safety and training program. The age rule now generates a paper record.

Why an Out of Class Device Is Not a Bicycle

This is the trap. A large share of what gets sold and ridden as an e-bike, particularly the heavy throttle machines popular with teenagers, exceeds the wattage or speed limits or has pedals that are decorative. Under Vehicle Code section 312.5, those are not electric bicycles.

They are motor vehicles instead, carrying registration, license, and insurance requirements no rider has satisfied. That does not defeat your claim, but it changes the conversation, and it is why the device's class is the first thing to document.

Photograph the frame sticker, the battery label, and the motor before the bike goes anywhere, and keep the receipt. If the bike was modified, know that now rather than learning it from the defense expert.

How the Class Argument Actually Plays Out

Violating an equipment or age rule does not end a case. California reduces your recovery by your share of fault rather than barring it, which is explained in our discussion of comparative negligence in California.

The more important point is causation. If a driver turned left across your path without looking, a missing rear reflector at two in the afternoon had nothing to do with why you were hit. Insurers raise these violations anyway, as leverage, hoping the rider assumes they are disqualifying.

Where a violation genuinely bites is when it connects to the collision: no rear light at night in a rear-end impact, or a Class 3 bike ridden by a 14 year old at 28 miles per hour on a path where it did not belong. Those facts reduce recovery, sometimes substantially. They still do not eliminate the driver's duty to look.

When the Rider Is a Minor: What Parents Are Exposed To

Parents think about their child getting hurt. The exposure runs both directions.

Civil Code section 1714.1 makes a parent or guardian jointly liable for the willful misconduct of a minor in their custody that results in injury or death, up to a limit set by statute. That cap makes the statute less frightening than it sounds, but it is not the whole picture.

The larger exposure is ordinary negligence law, which has no cap. A parent who buys a Class 3 e-bike, or an over powered device that is not an e-bike at all, and hands it to a 13 year old can be sued directly for negligent entrustment and negligent supervision. That is the parent's own negligence, not the child's, and the statutory limit does not apply to it.

Homeowners and renters policies often cover both. If your child is involved in a collision on an e-bike, tell your homeowners carrier early.

The Coverage Almost No Rider Knows About

This is the most valuable thing in this article. If a car hits you while you are on a bicycle, your own automobile insurance usually pays.

Uninsured and underinsured motorist coverage under Insurance Code section 11580.2 protects a person, not a car. The named insured and resident family members are covered while not occupying any vehicle when struck by an uninsured motor vehicle. You did not have to be driving, or anywhere near your own car.

That matters because the drivers who hit cyclists are so often uninsured or carrying a minimum policy that a broken collarbone exhausts. It also reaches hit and run collisions, but with conditions: there must have been physical contact, and the insured must report to police within 24 hours and give the insurer a sworn statement within 30 days. Miss those and coverage can be denied on procedure alone.

Check your declarations page this week, before anything happens. The coverage costs very little and it is often the difference between a real recovery and none at all.

What to Preserve After a Crash

These cases turn on physical evidence that gets thrown away quickly.

• The bike itself, unrepaired, including the battery and any damaged components
• The helmet, which shows impact location and is evidence you wore one
• Photographs of the frame and battery labels, and the purchase receipt
• Your clothing, as it came off, especially if it was reflective
• Any bike computer, phone, or watch data showing speed and route
• Doorbell and business camera footage, requested within days

Head injuries here are often underdiagnosed at the emergency room, where the fracture gets the attention. If you had any loss of consciousness, confusion, or persistent headaches, say so at every visit. Our catastrophic injury practice exists largely because these injuries surface weeks after a record was built without them.

When You Probably Do Not Need a Lawyer

Plenty of bicycle collisions resolve without an attorney, and it is worth saying which ones.

If a driver admitted fault, you were treated and released, the property claim covered your bike, and you were back to normal within a few weeks, you can likely settle it yourself. A contingency fee on a small, clean claim does not favor hiring anyone.

Get help when there is a fracture or a head injury, when the driver was uninsured and you need to open a claim against your own carrier, when a minor was riding, when a battery fire or mechanical failure was involved, or when the adjuster asks what class your bike was before asking how you are. Riders get blamed by default, the same way people on foot do, a pattern we describe in our post on pedestrian accident claims in California.

Frequently Asked Questions

How old do you have to be to ride an e-bike in California?

There is no state minimum age for Class 1 or Class 2. Vehicle Code section 21213 requires a rider to be at least 16 to operate a Class 3 e-bike, and all Class 3 riders and passengers must wear a helmet regardless of age.

Does my car insurance cover me when I am hit while riding a bicycle?

Usually yes, through uninsured and underinsured motorist coverage under Insurance Code section 11580.2, which follows the person rather than the vehicle. It applies whether or not your own car was involved.

I was not wearing a helmet. Is my claim over?

No. It may reduce recovery for head injuries a helmet would have prevented, more so where a helmet was legally required. It has no bearing on a broken wrist or a driver's failure to yield.

My e-bike was modified to go faster. Does that matter?

It can. A device exceeding the class limits is not an electric bicycle under Vehicle Code section 312.5, and the defense will argue you were operating an unregistered motor vehicle. That does not excuse the driver who hit you, but expect it to be raised.

Can I sue the parents if a kid on an e-bike hit me?

Possibly. Civil Code section 1714.1 covers a minor's willful misconduct up to a statutory limit, and a separate claim for negligent entrustment or negligent supervision against the parent has no such limit.

The driver left the scene. Do I still have a claim?

Yes, through your own uninsured motorist coverage, but the conditions are strict: physical contact, a police report within 24 hours, and a sworn statement to your insurer within 30 days.

Hurt Riding in California? Geller Legal Can Help.

These cases are lost on the equipment, not on the driving. An adjuster who cannot win the left turn argument will spend the file arguing about your class, your lights, your helmet, and your age, and each of those arguments depends on physical evidence that stops existing once the bike is repaired or scrapped. The 2026 rules gave insurers more of those arguments, not fewer.

Geller Legal | Personal Injury Attorneys handles these cases with the detail they demand. We document the class and condition of the bike before it leaves your garage, open the uninsured motorist claim on your own policy that most riders never think to use, and keep an equipment violation from being treated as if it caused a collision it had nothing to do with.

We serve injured clients throughout California, with offices in Walnut Creek, Oakland, and Los Angeles. If you were hit while riding, our bicycle accident attorneys can tell you within one conversation whether your own policy is the coverage that matters.

Contact Geller Legal for a free, confidential consultation with Attorney Michael Geller.