Slowly but surely, we’ve been here at Jalopnik. It’s a mission I’ve taken on, as I really do think they might be the best way to travel around town. You get a bit of exercise, feel the wind in your hair and get to take in the sights — what more could you want?

This slow, but steady, mission to make Bikelopnik a thing has meant I’ve reviewed a few different e-bikes this year. And, at the bottom of some of those reviews, a few commenters took great delight in telling me that it wasn’t actually an e-bike at all because of their various reasons.

But here’s the thing: every model we’ve reviewed this year is a perfectly legal e-bike, they’re just all different from classes.

Here in the U.S., which differ in speed and the way they get their power down. So, we thought now was a good time for a quick refresher on what each class of e-bike actually means.

Class 1 E-Bikes

Class 1 is pretty simple: It’s an electric bike with a motor that will only ever engage while you’re pedaling. These dedicated pedal-assist models can hit a top speed of 20 mph before the motor cuts out.

If you ride a class 1 e-bike, you don’t need to register it, and you don’t need a license to ride — just a good helmet and a need for speed.

Class 1 e-bikes include electric off-shoot and earlier this year.

Class 2 E-Bikes

Things . At this level, you have a motor that is still limited to 20 mph, but it can be activated by spinning the pedals or with a throttle. This basically means that on a class 2 bike, you can choose to pedal or sit back and ride like an electric moped.

As with class 1, you also do not need a license to ride a class 2 e-bike, and you don’t need to register your ride.

Class 2 bikes last month and bikes like the .

Class 3 E-Bikes

When you move up to class 3, it’s back to being pedal assist or nothing. At this level, your motor can power you up to 28 mph at the top speed, but it’s only active when you are pedaling the bike.

Once again, you don’t need to register your bike or have a license to ride, but by law. But that’s just common sense — you should always wear a helmet.

Class 3 bikes are pretty awesome, and that we rode this summer.