US e-bike shopping ads talk about “Class 2” as if it were a license. It is not. Shoppers usually meet that label as Class 1, Class 2, or Class 3 e-bike. It is a product label: how the motor helps, and the speed at which that help stops.
This page is the baseline we use on every commuter shortlist. It is not legal advice. Your city can be stricter than your state. Your state can be stricter than the federal product rule.
The 20-second version
| Class | How the motor works | Assisted speed cap | Typical first-time use |
|---|---|---|---|
| Class 1 | Pedal assist only. No throttle. | 20 mph | Bike lanes and many paths |
| Class 2 | Throttle allowed. Pedal assist too. | 20 mph | Stop-start city streets |
| Class 3 | Pedal assist only. Speedometer on the model-law version. | 28 mph | Faster road commutes; more rules |
All three classes, in the usual US definition, also assume fully operable pedals and a motor of 750 watts or less.
This is a baseline, not a license
Two rulebooks get mixed up in product pages.
Federal consumer-product law (the “low-speed electric bicycle” definition the CPSC uses) is about how the bike is built: operable pedals, a motor at or under 750 watts, and a motor-only speed at or under 20 mph. That rule decides whether the thing is sold as a bicycle-like product instead of a motor vehicle. It does not tell you which path you may use on Tuesday.
Where you may ride — bike lane, multi-use path, park trail, sidewalk — is state and local. Most states now use some version of the three-class model that PeopleForBikes pushed into statute. “Most” is not “all,” and a trail manager can ban a class even when the state allows it.
If a retailer says “street legal in all 50 states,” treat that as marketing.
Class 1
The motor helps only while you pedal. Help stops at 20 mph. There is no throttle.
This is the class path managers dislike least. It still looks and feels like a bicycle. For a first bike-lane commute, Class 1 is the default “fewest arguments” choice — not because it is slow in a useful way, but because fewer ordinances single it out.
You still have to check the path. A closed park trail can ban every e-bike.
Class 2
The motor may propel the bike without pedaling (throttle), and it must stop assisting at 20 mph.
This is the class most first-time commuter ads sell. A throttle is useful at a light, on a short hill from a stop, or if your knees are not ready for a pure pedal-assist start. It is also the feature multi-use paths most often restrict.
A Class 2 bike that can be “unlocked” so the throttle still pulls past 20 mph is no longer a Class 2 bike in any serious sense. That is how a commuter product turns into something police and insurers treat like a moped.
Class 3
The motor helps only while you pedal. Help can continue to 28 mph. Model legislation expects a speedometer.
Class 3 is the road commuter’s tool when the speed limit and the bike lane can take 28 mph traffic. It is also the class with the most extra rules. In California, for example, you must be 16 to operate a Class 3 e-bike, and every Class 3 rider and passenger must wear a bicycle helmet that meets ASTM or CPSC standards — not only riders under 18. Other states rhyme with that pattern (helmet, minimum age) even when the statute number is different.
Many multi-use paths ban Class 3 even when Class 1 is allowed. If your commute is a shared greenway, Class 3 is often the wrong shortlist.
What the label on the bike should show
In three-class states, the manufacturer is supposed to fix a permanent label: class number, top assisted speed, motor wattage.
Buy the labeled bike. Photograph the label. If the listing has no class, no wattage, and a throttle that the seller will “unlock,” you are not shopping for an e-bike in the legal sense. You are shopping for an unlicensed motor vehicle with pedals glued on.
A mode switch that claims “Class 2 and Class 3 and 40 mph” on one frame does not make the bike three legal products. One machine has one capability.
Wattage: 750W vs the motor sticker
The number on the Amazon title is often peak watts for a few seconds, not the continuous rating the statute cares about.
Federal and class-model language uses a 750-watt (about 1 horsepower) ceiling. A “1,000W peak” commuter may still be sold as an e-bike. A bike that is honestly 1,500–3,000W, or that does 30 mph on throttle alone, is the “e-moto problem”: pedals do not turn it into a Class 2.
We will not list a bike as a commuter e-bike on The Ride Brief if the seller’s own spec sheet shows throttle past 20 mph or a motor that is clearly out of class.
E-scooters are not in this class system
Stand-up e-scooters follow city and state scooter rules, not Class 1/2/3. Speed caps, bike-lane access, and age limits are a different list. Do not use this page to justify a scooter.
We keep scooter rules on a separate brief.
How we use this on The Ride Brief
Every commuter shortlist will name the class. If a model is Class 2, we will say so, and we will say when a path ban is the reason to pick Class 1 instead.
Read next: how range claims are measured, then the commuter shortlist.
This page is a buying brief, not a lawyer. Confirm the statute and the trail rules where you live before you ride.
Sources
- PeopleForBikes three-class model legislation (class definitions and 750W baseline).
- US CPSC / federal “low-speed electric bicycle” product definition (pedals, ≤750W, ≤20 mph on motor alone).
- Example state rules: California Vehicle Code §§ 312.5, 21207.5, 21213 (Class 3 age and helmet). California is an example, not a national code.