California E-Bike Laws
2026 Complete Guide
Everything you need to ride legally in California — classifications, helmet rules, age limits, where you can ride, and a full breakdown of the 2026 law changes including AB 544, SB 1271, and AB 1774.
Major 2026 Law Changes: California enacted four significant e-bike bills that took effect January 1, 2026: AB 544 (rear lighting required at all times), SB 1271 (battery certification mandate), AB 965 (point-of-sale age restriction for Class 3), and AB 1774 (ban on speed-modification devices). All four are covered in detail below.
California was one of the first states to adopt the three-class framework in 2015. All e-bikes sold and ridden in the state must be permanently labeled with their class. Here’s how each class is defined under California Vehicle Code Section 312.5.
Class 1 — Pedal Assist
Motor only engages when pedaling. Assistance cuts off at 20 mph. No throttle permitted. Broadest trail and path access of any class.
Class 2 — Throttle Assist
Throttle can propel the bike without pedaling. Motor assistance still capped at 20 mph. Only class where throttles are legal under SB 1271.
Class 3 — Speed Pedelec
Pedal assist up to 28 mph. Must have a working speedometer. Requires helmet for all riders. Minimum age 16. Restricted from most shared-use paths.
| Rule | Class 1 | Class 2 | Class 3 |
|---|---|---|---|
| Max Assisted Speed | 20 mph | 20 mph | 28 mph |
| Throttle | Not Allowed | Allowed | Not Allowed |
| Speedometer Required | No | No | Yes |
| Helmet — Under 18 | Required | Required | Required |
| Helmet — Adults (18+) | Not Required | Not Required | Required |
| Minimum Age | None | None | 16 years old |
| Bike Lanes | Allowed | Allowed | Road Lanes OK |
| Shared-Use Paths | Allowed (statewide) | Local Rules Vary | Generally Prohibited |
| Mountain Bike Trails | Land Manager Decides | Land Manager Decides | Usually Prohibited |
| License / Registration | Not Required | Not Required | Not Required |
| Insurance | Not Required | Not Required | Not Required |
| Battery Cert. (UL 2849) | Required (new sales) | Required (new sales) | Required (new sales) |
| Rear Light / Reflector | All Hours (AB 544) | All Hours (AB 544) | All Hours (AB 544) |
California enacted four significant pieces of e-bike legislation that took effect January 1, 2026. Here’s what each bill does and what it means for riders.
Rear Lighting Required at All Times
Assembly Bill 544 (Davies) requires all e-bikes to carry a red rear reflector or a solid/flashing red rear light with a built-in reflector, visible from 500 feet — at all hours of the day, not just after dark. Previously, California only required rear lighting during darkness. The change is now enforceable any time you ride, day or night, and carries an infraction penalty. AB 544 also creates a helmet-violation compliance pathway: minors who receive a citation for not wearing a helmet can have the fine waived if a parent or guardian produces proof of a compliant helmet and shows the child completed a CHP-developed e-bike safety course.
Battery Safety Certification Mandate
Senate Bill 1271 (Min) bans the sale, lease, or distribution of any e-bike in California unless the battery has been tested and certified by an accredited laboratory to ANSI/CAN/UL 2849, EN 15194, or a standard set by the State Fire Marshal. The certification mark must be permanently affixed to the battery and charger — not just on the box. Retailers must provide test reports to customers upon request. The law was also motivated by a national surge in lithium-ion battery fires: New York City recorded over 200 battery fires in a single year, and California acted to prevent the same outcome. SB 1271 also eliminates the “continuous power” distinction — 750 watts is now an absolute cap, not just a sustained-output ceiling.
Class 3 Age Restriction at Point of Sale
Assembly Bill 965 extends California’s existing Class 3 minimum riding age (16) to the point of sale: retailers are now explicitly prohibited from selling a Class 3 e-bike to anyone under 16. While the riding age requirement already existed, this bill adds a commercial enforcement layer, making it illegal to complete the transaction — not just illegal to ride. Under AB 875, law enforcement can also impound any vehicle under four wheels capable of exceeding 20 mph when operated by an unlicensed individual, which includes a minor under 16 on a Class 3 e-bike.
Speed Modification Devices Banned
Assembly Bill 1774 makes it illegal to sell, install, or use devices or software specifically designed to override an e-bike’s speed limits or motor assist modes. This targets the growing market for “de-restriction” kits that allow riders to push their bikes beyond the legal class definition. If a modified e-bike’s motor can exceed 750W or its assisted speed exceeds the class limit — even momentarily — it may be reclassified as a motor vehicle, triggering registration, licensing, and insurance requirements under California law. The law is designed to shrink the availability of these products as much as enforcement of individual riders.
Permitted riding areas in California depend on your e-bike’s class and the jurisdiction you’re in. Here’s the breakdown by location type.
🛣️ Roads & Bike Lanes
- Class 1 & 2: Allowed in all bike lanes where traditional bicycles are permitted
- Class 3: Allowed in bike lanes and on roads; may not use bike paths unless local rules permit
- All classes must follow posted speed limits and ride with traffic
- Class 3 may be prohibited from low-speed zones or school areas by local ordinance
🚶 Shared-Use & Paved Paths
- Class 1: Allowed on all shared-use paths statewide under California Vehicle Code
- Class 2: Permitted on most paths, but local jurisdictions may restrict
- Class 3: Generally prohibited on shared-use paths; allowed only where explicitly permitted by local rule
- Always check local signage before riding any multi-use path
🌲 State Parks & Natural Trails
- California State Parks generally allow Class 1 on multi-use trails designated for bikes
- Class 2 and 3 are frequently restricted in state park settings
- Each park unit sets its own rules — check before you go
- E-MTB access is expanding on some trails managed by USFS and BLM — verify by district
🏙️ Sidewalks & Urban Areas
- Sidewalk riding is not addressed by state law — it defaults to local city ordinances
- Most major California cities (LA, SF, San Diego, Sacramento) prohibit or restrict e-bikes on sidewalks
- Some cities allow slow riding on sidewalks in limited areas with no bike infrastructure
- San Diego and Marin counties have additional local rules for younger riders
Helmet Requirements
California requires helmets for:
- All riders under 18 on any class
- All Class 3 riders regardless of age
- Helmets must meet ANSI Z90.4, ASTM F1447, Snell B-90/B-95, or CPSC standards
Required Lighting (AB 544)
As of January 1, 2026:
- Rear red reflector or red light (solid or flashing) required at all hours, not just at night
- Must be visible from 500 feet to the rear
- Front lighting still required only during darkness
Motor & Speed Limits
California follows federal standards:
- 750W absolute maximum — no burst or peak exceptions under SB 1271
- Class 1 & 2: assist cuts at 20 mph
- Class 3: assist cuts at 28 mph
- Speed-modification devices banned under AB 1774
Battery & Safety Certification
Under SB 1271 (effective Jan 1, 2026):
- All new e-bikes sold must have UL 2849 or EN 15194 certified batteries
- Certification label must be permanently affixed to battery and charger
- Retailers must provide test reports on request
- Applies to new sales, leases, and rentals — not existing bikes
Age Requirements
California’s age rules by class:
- Class 1 & 2: No minimum age statewide (local rules may differ)
- Class 3: Minimum age 16
- Retailers cannot sell Class 3 to anyone under 16 (AB 965)
- Law enforcement may impound Class 3 ridden by under-16 riders (AB 875)
Registration & Insurance
For all three classes in California:
- No vehicle registration required
- No driver’s license required
- No insurance required by state law
- E-bikes modified beyond legal class limits may be reclassified as motor vehicles and require all three
Understanding California E-Bike Law in 2026
California has been a national leader in e-bike legislation since 2015, when it became one of the first states to establish a three-class framework for electric bicycles. That framework — still the foundation of state law — distinguishes between pedal-assist bikes (Class 1), throttle-equipped bikes (Class 2), and faster pedal-assist performance bikes (Class 3). The 2025 and 2026 legislative sessions layered four significant bills on top of this foundation, touching battery safety, lighting, age restrictions, and anti-modification enforcement.
Why California Acted in 2025–2026
The wave of new legislation was driven largely by two converging trends: a dramatic increase in e-bike-related injuries, particularly among teenagers, and a growing number of lithium-ion battery fires linked to uncertified e-bike batteries. Reports from major cities documented hundreds of battery fires annually — several resulting in fatalities — concentrated in areas where cheap, uncertified batteries were common. California’s response focused on both upstream (battery certification at point of sale) and downstream (lighting visibility, rider education) solutions.
Separately, state regulators and local governments had been grappling with an enforcement gap: riders were increasingly modifying their Class 1 or Class 2 e-bikes with de-restriction kits that pushed motor output and speed beyond legal class limits. Assembly Bill 1774 directly targeted the commercial availability of these modification products, aiming to reduce the supply-side rather than purely relying on individual rider enforcement.
The SB 1271 Battery Certification Rule in Detail
The most consequential law for buyers and retailers is SB 1271. Starting January 1, 2026, it’s illegal to sell, lease, or distribute an e-bike in California unless the battery has been tested by an accredited lab to the standards referenced in ANSI/CAN/UL 2849 (which covers the full electrical system including drivetrain, battery, and charger) or EN 15194 (the European standard widely used by major manufacturers). The law also references UL 2271, which covers light electric vehicle battery packs.
Critically, it’s not enough to have been tested — the certification must be permanently affixed to the product. The lab’s name, logo, and the applicable standard must appear directly on the battery and charger, not just on the packaging. Retailers who can’t produce a valid test report upon customer request face compliance penalties. Used or secondhand sales are treated differently and are not subject to the same certification mandate.
Practically speaking, this rule primarily affects budget and off-brand e-bikes imported without certification documentation. Most major brands — Trek, Specialized, Giant, Rad Power Bikes, Bosch-equipped models — were already compliant or quickly adapted. Buyers should look for the UL certification mark on the battery itself before purchasing any new e-bike in California.
AB 544 and the Daytime Lighting Requirement
Assembly Bill 544 closes what was a logical gap in prior law: previously, California only required rear reflectors or lights during darkness. AB 544 extends this to all hours of operation — any time an e-bike is being ridden, a rear red reflector or red light visible from 500 feet is required. The front lighting requirement remains limited to darkness.
Critics have noted that standard reflectors only return light when a car’s headlights are pointing at them, which doesn’t apply during daylight when headlights aren’t typically in use. Many cyclists and advocacy groups therefore recommend an active rear light rather than a passive reflector, even though both technically satisfy the law’s requirement. A basic battery-powered rear blinker costs under $15 and eliminates any compliance ambiguity.
Throttles: What SB 1271 Changed
One of the more significant — and sometimes overlooked — changes from SB 1271 is the explicit prohibition of throttles on Class 1 and Class 3 e-bikes. Class 1 was already defined as pedal-assist only, but some bikes were sold with both a pedal-assist system and an optional throttle. SB 1271 now makes clear that throttles are only legal on Class 2 e-bikes. Any Class 1 or Class 3 bike with a throttle that functions as a throttle (not just a boost button that requires pedaling) is technically non-compliant.
Local Law Overlays: California’s Patchwork of City Rules
California state law sets the floor, but cities and counties can — and frequently do — add restrictions. Los Angeles, San Francisco, San Diego, Sacramento, Oakland, and dozens of smaller cities have their own rules governing where e-bikes can be ridden within city limits. Common local additions include: prohibition of e-bikes on sidewalks (most large cities), speed limits on bike paths below the class-maximum, seasonal restrictions in tourist or pedestrian-heavy zones, and local requirements for Class 3 riders on mixed-use paths.
Riders in Marin County and San Diego should be particularly aware, as both areas have adopted additional restrictions for younger riders that go beyond the state minimum. Before riding in any new city or jurisdiction in California, it’s worth a quick check of local ordinances or posted signage at trail heads and path entrances.
California Trail Access for E-Bikes: The Land Manager Variable
Trail access for e-bikes in California is governed less by state law than by individual land management agencies. California State Parks generally permit Class 1 e-bikes on multi-use trails that are designated for bicycles, but typically restrict or ban Class 2 and 3 on the same trails. The U.S. Forest Service and Bureau of Land Management manage large portions of California’s outdoor recreation land, and policies vary dramatically by district and individual ranger district.
E-mountain biking (e-MTB) access has been gradually expanding in California as advocacy organizations like IMBA and PeopleForBikes push for wider Class 1 access on natural surface trails. Some key trail networks in the Sierra Nevada, Tahoe region, and Southern California have opened Class 1 e-MTB access in recent years. However, national parks managed by the NPS remain generally restrictive — e-bikes are not permitted on most unpaved NPS trails in California, including those in Yosemite, Sequoia, and Joshua Tree.
The safest approach: assume no access until confirmed, check the managing agency’s website before visiting, and always follow posted signage at trail heads. Rules can change between seasons and from year to year.
No. California does not require a driver’s license, vehicle registration, or insurance for Class 1, Class 2, or Class 3 e-bikes. This applies to all three classes as long as the bike meets California’s definition of an electric bicycle (fully operable pedals, ≤750W motor, motor assists up to either 20 or 28 mph depending on class). If you modify your e-bike beyond these limits, it may be reclassified as a motor vehicle and subject to all applicable vehicle laws.
Only on Class 2 e-bikes. Under SB 1271, throttles are explicitly prohibited on Class 1 and Class 3 e-bikes. Class 1 and Class 3 must use pedal-assist systems only. If your Class 1 or Class 3 bike has a working throttle, it may not meet California’s legal definition for its labeled class. This is a notable change — previously, some manufacturers sold Class 1 bikes with both pedal-assist and throttle modes, and the law’s treatment of those was ambiguous.
Generally no. California state law prohibits Class 3 e-bikes from shared-use paths unless a local authority specifically permits it. Class 3 is allowed in bike lanes adjacent to roads and on roads themselves, but not on multi-use recreational paths. Some jurisdictions have carved out exceptions for specific protected bike lanes or wide paths, but these are the exception, not the rule. When in doubt, check local signage or the managing agency’s rules before riding a Class 3 on any path.
Under SB 1271, any new e-bike sold, leased, or distributed in California as of January 1, 2026, must have a battery certified to UL 2849, EN 15194, or a standard established by the State Fire Marshal. The certification mark must be permanently affixed to the battery and charger — not just on the packaging. This rule applies to new commercial sales; it does not require existing riders to retrofit or recertify bikes they already own. If you’re buying a new e-bike, look for the certification mark on the battery unit itself.
It depends on your class and age. All riders under 18 must wear a helmet on any class of e-bike. All Class 3 riders — regardless of age — must wear a helmet. For adults on Class 1 or Class 2 bikes, helmets are not legally required under state law, though they are strongly recommended. Helmets must meet one of the approved safety standards (ANSI Z90.4, ASTM F1447, Snell B-90/B-95, or CPSC). Under AB 544, minors who receive helmet citations can have the fine waived by completing a CHP e-bike safety course and showing proof of a compliant helmet.
Yes, with conditions. There is no minimum age for riding a Class 1 or Class 2 e-bike under state law (though some local jurisdictions set their own limits). The minimum age for Class 3 e-bikes is 16 — and as of 2026 (AB 965), retailers are also prohibited from selling Class 3 bikes to anyone under 16. All riders under 18 must wear a helmet on any class. Law enforcement can also impound a Class 3 e-bike being operated by a rider under 16 under AB 875.
It can have serious legal consequences. Under AB 1774, it is now illegal to sell, install, or use speed-modification devices or software on e-bikes in California. If your modified e-bike exceeds the 750W motor cap or its assisted speed no longer matches its labeled class, it may be reclassified as a motor vehicle — requiring registration, a driver’s license, and insurance to operate legally on public roads. Riding an illegally modified e-bike could result in impoundment, fines, and the loss of the bike’s legal status as a bicycle.
Yes — under AB 544 (effective January 1, 2026), all e-bikes must have a red rear reflector or a solid/flashing red rear light with a built-in reflector at all hours of operation, not just at night. The rear light or reflector must be visible from 500 feet. This is a change from prior law, which only required rear lighting during darkness. Front lighting is still only required during darkness. Failure to comply is treated as an infraction and can result in a fine.
It depends on the specific park and trail. California State Parks generally allow Class 1 e-bikes on multi-use trails designated for bicycle use. Class 2 and 3 e-bikes are frequently restricted. Each park unit sets its own rules — what’s allowed at one park may not be at another. For national parks (Yosemite, Sequoia, Joshua Tree, etc.), e-bikes are generally not permitted on unpaved trails. Always check the specific park’s website or contact the ranger station before visiting.