The class 2 vs class 3 ebike question comes down to two things: how fast the motor will help you go, and where you're allowed to ride. A Class 2 bike has a throttle and tops out at 20 mph. A Class 3 bike helps you pedal up to 28 mph. The extra speed is great on roads and comes with more rules.
We compare them below using the specs of the e-bikes we track. We have not ridden these bikes ourselves. Speeds and ranges are manufacturer ratings, and state laws change, so confirm your local rules before you buy.
The three e-bike classes
Most US states sort e-bikes into three classes. All three are limited to a motor of 750 watts or less under the federal low-speed electric bicycle definition.
| Class 1 | Class 2 | Class 3 | |
|---|---|---|---|
| How the motor helps | Pedal assist only | Pedal assist plus throttle | Pedal assist (throttle rules vary) |
| Motor stops helping at | 20 mph | 20 mph | 28 mph |
| Speedometer required | No | No | Yes, in most states |
| Bike lanes | Usually allowed | Usually allowed | Usually allowed |
| Multi-use paths and trails | Often allowed | Often allowed | Often restricted |
| Age or helmet rules | Rare | Rare | Common (often 16+, helmet) |
You can always pedal faster than the limit under your own power. The class only sets when the motor stops helping.
Class 2: the throttle bike
A Class 2 e-bike lets you twist or press a throttle and ride without pedaling, up to 20 mph. That makes it easy to start from a stop, get up a hill when you're tired, or carry a heavy load.
Class 2 suits you if:
- Your rides are short to medium, around town or on paths.
- You want a throttle for starts, hills, or a bad knee.
- Your route uses greenways or multi-use paths where Class 3 bikes may not be allowed.
- You carry kids or cargo and want to get moving without a hard push.
Class 2 bikes we track include the Rad Power RadRunner 3 Plus cargo bike, the Heybike Mars 2.0, and the budget Gotrax R1, which at 45 lb is the lightest bike on our list.
Class 3: the commuter bike
A Class 3 e-bike keeps assisting until 28 mph, which is closer to the speed of city traffic. On a 10-mile commute the difference between cruising at 18 mph and 25 mph is about 9 minutes each way.
Class 3 suits you if:
- You commute more than about 8 miles, mostly on roads or in bike lanes.
- You want to keep up with traffic on busy streets.
- You don't need a throttle, or your state allows one limited to 20 mph.
- You're old enough to meet your state's Class 3 age rule, often 16.
Most of the commuter bikes we track are Class 3, including the Ride1Up 700-Series, Velotric Discover 2, Aventon Level.2, and Lectric XP4.
Where each class can ride
This is the part most buyers miss. Bike lanes are open to all three classes in most places. Multi-use paths, greenways, and mountain bike trails are a different story. Many states and park districts allow Class 1 and 2 on paths but keep Class 3 bikes on the road, and some trails allow only Class 1.
Some bikes let you switch class in the display settings. If yours does, the class label on the frame should match how you actually ride it, and you should drop to Class 2 limits on paths that require it.
Cost and wear
Class 3 bikes in our list mostly run $1,299 to $1,699, while the Class 2 bikes range from about $405 to $2,299 because the group includes budget folders and a heavy cargo bike. Riding at 28 mph uses more battery than 20 mph, so expect less range at full assist, and faster wear on brake pads and tires. Hydraulic disc brakes are worth having on a Class 3 bike.
Picks by class
Class 3 commuters:
Class 2 with a throttle:
See every graded commuter on our best e-bikes for commuting page, or compare an e-bike with a scooter in our e-bike vs electric scooter guide.
The bottom line
Choose Class 3 if you ride longer distances on roads and want to keep pace with traffic. Choose Class 2 if you want a throttle, ride on paths and greenways, or carry kids and cargo. When in doubt, check where you'll ride most: if it's a multi-use path, Class 2 keeps you legal.