E-bikes changed the South Bay faster than the rules did. In a few years they went from a novelty to the way a large share of local teenagers get to school, to the beach and to practice, and the beach cities have been writing ordinances ever since to catch up. If you ride one here, or you have a kid who does, the rules that matter are a mix of state law and city law, and the city law is where most people get caught out.
What are the three e-bike classes in California?
California sorts e-bikes into three classes, and almost every rule downstream depends on which class a bike is.
| Class | How it works | Assist cuts out at | Minimum age |
|---|---|---|---|
| Class 1 | Pedal assist only, no throttle | 20 mph | No state minimum |
| Class 2 | Throttle assist, can propel without pedaling | 20 mph | No state minimum |
| Class 3 | Pedal assist only, no throttle | 28 mph | 16 |
Two state level points that catch people out. A motor cannot exceed 750 watts at any point in operation, including peak output, and under SB 1271 only Class 2 bikes may have a throttle. A Class 1 or Class 3 bike sold with a throttle is not a legal e-bike in California. A great many bikes sold online are.
If a bike goes faster than 28 mph under power, or the motor exceeds 750 watts, it is not an e-bike under California law at all. It is a motor vehicle, and the rules that attach to it are completely different.
Who has to wear a helmet?
Every rider and passenger under 18 must wear a properly fitted and fastened helmet meeting ASTM or CPSC standards when riding on a street, bikeway or public bicycle path or trail. On a Class 3 bike, every operator and passenger must wear one regardless of age.
That is the state floor. Hermosa Beach goes further inside city limits, and the city rule is the one that gets enforced on the Strand.
What changed on 1 January 2026?
As of 1 January 2026, new e-bikes and their storage batteries sold in California must be tested by an accredited laboratory to meet the ANSI/CAN/UL 2849 or EN 15194 standard. This is a battery fire safety measure, and it is aimed squarely at the cheap imported packs behind most e-bike fires.
The practical effect for a buyer is simple. Ask for the certification before you buy, and be skeptical of a bike or a replacement battery that cannot show one. For a bike already in the garage, this does not make it illegal to ride, but it is a reason to stop charging it overnight in a hallway or next to a bedroom door.
What are the rules in Hermosa Beach?
Hermosa Beach has the strictest e-bike ordinance in the South Bay. On 4 June 2024 the City Council unanimously adopted an urgency ordinance, effective immediately, after finding that e-bike misuse presented an immediate threat to public safety. Fines range from $250 to $1,000.
The ordinance covers e-bikes and any other electric or motorized conveyance, including motor driven cycles, pocket bikes and electric motorcycles. It requires all of the following:
- No riding in an unsafe manner that endangers the rider or others.
- Every operator and passenger under 18 must wear a properly fastened helmet, regardless of class.
- No electric or motorized conveyance of any kind on the Greenbelt, the landscaped trail running between Ardmore Avenue and Valley Drive.
- No riding any bicycle or electric conveyance under the influence of alcohol or drugs.
- No carrying a passenger unless the bike has a separate attached seat for them.
- A rider under 18 cited under the ordinance may have the bike impounded, released to a responsible adult on payment of a fee.
The ordinance also reached the rental companies. As of 4 August 2024, every business renting e-bikes in Hermosa Beach must fit geofencing technology that disables the electric motor on the Strand, Pier Plaza, the Greenbelt and anywhere else in the city where e-bikes are not permitted to operate. If you have rented a bike in Hermosa and found the motor cut out as you reached the Strand, that is the ordinance working as designed.
The ordinance does not restrict safe use of electric or motorized conveyances by people with disabilities as defined under the Americans with Disabilities Act.
What are the rules in Manhattan Beach and Redondo Beach?
Manhattan Beach restricts e-bike use on the beach path and holds riders to a posted speed limit on the Marvin Braude bike trail. In the high traffic stretches near the pier the expectation is that riders cut the motor or walk the bike.
Redondo Beach has not adopted its own e-bike ordinance in the way Hermosa has. Riders there are held to state law and to the same rules as any other cyclist, along with the city’s separate restrictions on where bikes may go near the beach.
Because the three cities run different rules along one continuous stretch of coast, a single ride from El Segundo to Torrance can cross three enforcement regimes in twenty minutes. The safe default on any shared path in the beach cities is motor off, walking pace where it is crowded, and helmet on for anyone under 18. That default is legal everywhere here, which is more than can be said for any other approach.
Where can you actually ride an e-bike in the South Bay?
The Marvin Braude bike trail is the main route, running the coast with a speed limit and heavy pedestrian traffic on summer weekends. City streets and bike lanes are open to all three classes subject to the state rules. The Hermosa Valley Greenbelt is closed to every electric conveyance. The Strand is closed to motor use in Hermosa Beach and restricted in Manhattan Beach. Palos Verdes Nature Preserve trails follow their own posted rules, and most are closed to motorized use.
The workable version of an e-bike commute here is streets and bike lanes, not the beachfront paths. Riders who treat the coast as the route spend the trip cutting power and arguing with people. Riders who treat Valley Drive, Sepulveda and the inland bike network as the route get there faster.
What should a parent know?
Three things. A Class 3 bike is off limits to anyone under 16 anywhere in California. A helmet is mandatory under 18 everywhere, and in Hermosa Beach the city enforces it with its own citation and the possibility of impounding the bike. And a bike bought online with a throttle and pedal assist to 28 mph is not a legal Class 3 e-bike in this state, whatever the listing says.
The fix for the last one is to check the label on the frame before purchase. Every compliant e-bike carries a class label with the class number, top assisted speed and motor wattage. No label is itself the answer.
E-bike law is moving quickly at both the state and city level, and Hermosa Beach adopted its ordinance on an urgency basis with further amendments possible. This post was verified against California statute and City of Hermosa Beach sources in September 2026 and is general information, not legal advice. Confirm current rules with the city you are riding in.
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