California's 2026 E-Bike Laws: What Changed, and What Orange County Adds
Two California e-bike laws changed on January 1, 2026, and one of them applies to a bike you are probably riding right now. Neither got much announcement. Both are worth ten minutes of your attention.
Here's the plain-English version, plus what Orange County adds on top.
1. You now need a red light or reflector on the back, in daylight too
This is AB 544, effective January 1, 2026. Every e-bike operated in California must have, on the rear, either a red reflector or a red light. Solid or flashing is fine.
The change that catches people out: it applies during all hours of operation, not just after dark. The old rule was a nighttime rule. This one isn't.
Most e-bikes that shipped with a rear light are already fine. The bikes that fail are the ones where the rear light died two winters ago, or where a previous owner pulled the rear rack, and the reflector with it. Look at the back of your bike before your next ride. If there's nothing red back there, you're out of compliance.
2. New bikes sold in California need lab-certified batteries
This is SB 1271. New e-bikes, batteries, and charging systems sold or leased in California now have to be tested by an accredited lab against a recognized safety standard: UL 2849 or the equivalent.
Two things this means in practice:
- If you're buying: ask whether the specific model is certified, not whether the brand "meets" a standard. Those are different sentences, and only one of them is a claim anybody has tested.
- If you already own: this law governs what can be sold going forward. It doesn't make your existing bike illegal. But if you're riding a no-name pack from a marketplace listing, this is a reasonable moment to get it looked at.
The class rules, which haven't changed
| Class | How it works | Top assisted speed | Minimum age | Helmet |
|---|---|---|---|---|
| Class 1 | Pedal assist only, no throttle | 20 mph | None statewide | Under 18 |
| Class 2 | Throttle allowed | 20 mph | None statewide | Under 18 |
| Class 3 | Pedal assist, speedometer required | 28 mph | 16+ | Every rider, every age |
Class 1 and 2 can use bike paths and multi-use trails unless the local agency says otherwise. Class 3 is generally restricted to roadways and bike lanes and is not allowed on Class I separated bike paths unless a local authority specifically opens them.
Your bike should carry a label stating its class, top assisted speed, and motor wattage. If yours doesn't have one, that's worth knowing before a police officer points it out.
What Orange County adds
The County publishes its own rules for unincorporated areas, and they're stricter than most riders assume:
- 10 mph on paved trails. Not 20. Ten.
- 5 mph on sidewalks.
- Helmets required under 18, recommended for everyone.
- No riding against traffic. No passengers unless the bike was built with a seat for one.
- County paved trails are approved for Class 1 and Class 2.
And the important caveat: cities set their own rules on top of this. Several Orange County cities have tightened e-bike enforcement over the past year, and what's legal on a trail in one city may not be a block over. If you regularly ride in a specific city, spend five minutes on that city's page. It's cheaper than the citation.
The five-minute self-check
Before your next ride, walk around the bike:
- Is there a red reflector or working red light on the rear? (AB 544: required now, day and night.)
- Is there a front white light for night riding?
- Is the class label still readable on the frame?
- If it's Class 3, is everyone riding it 16 or older, and wearing a helmet?
- Do the brakes still stop the bike hard, from speed, without drama?
Four of those five are things you can check in your garage. The fifth is the one people put off.
Not sure where your bike stands?
Bring it by. We'll look at the rear lighting, check the class label, and tell you what, if anything, needs to change to be street legal in 2026. We stock rear lights and reflectors, and fitting one is usually a few minutes at the counter.
We service every brand, including bikes bought online, so you don't need to have bought it from us.
ATB Bike
13842 Newport Ave #D-1, Tustin, CA 92780
Open every day, 10 AM – 6 PM
(626) 652-7233
This article is general information for Orange County riders, not legal advice. City ordinances change, so check your city's current rules for where you ride.