E-BIKES · EXPLAINER
E-Bike Classes 1, 2, and 3 Explained
The short answer
Class 1 is pedal-assist only, motor cuts out at 20 mph. Class 2 adds a throttle, still capped at 20 mph. Class 3 is pedal-assist up to 28 mph, with no throttle assist above 20 mph in most states. Class 1 has the widest access to bike paths and trails. Class 3 is fastest for road commuting but the most restricted on shared paths. Choose based on where you will actually ride.
Class 1: pedal-assist to 20 mph
The motor helps only while you are pedalling, and stops assisting at 20 mph. There is no throttle.
Class 1 is the most widely accepted category. Because it behaves most like a conventional bicycle, it is typically allowed wherever regular bikes go, including many multi-use paths and natural-surface trails that restrict other classes. If your route depends on a trail network, or you want the fewest access headaches, Class 1 is the safe choice.
Class 2: throttle to 20 mph
Everything Class 1 does, plus a throttle that moves the bike without pedalling, capped at 20 mph.
The throttle is genuinely useful in specific moments: pulling away from a standstill on a hill, getting across a junction briskly, or moving a heavily loaded cargo bike. It is also valuable for riders with limited mobility or knee problems, for whom a throttle is the difference between cycling and not.
The catch is access. Because a throttle makes the bike closer to a moped in some regulators’ eyes, Class 2 is restricted on more trails than Class 1.
Class 3: pedal-assist to 28 mph
Pedal-assist that keeps helping up to 28 mph. Class 3 bikes are generally required to have a speedometer, and many jurisdictions set a minimum rider age or require a helmet.
For road commuting, Class 3 is the meaningful upgrade: the difference between 20 and 28 mph noticeably shortens a longer commute and helps you keep pace with slow urban traffic, which can feel safer in a lane. The trade-off is the most restricted path access of the three, and higher speed demands more of your brakes and your attention.
Where each class is allowed
This is the part that trips people up: the rules vary by state, and often by city, county, or even individual park. Most US states have adopted the three-class framework, but what each class may do differs.
Some common patterns: bike lanes on roads generally allow all classes; paved multi-use paths often allow Class 1 and 2 while restricting Class 3; natural-surface and mountain-bike trails are the most restrictive and frequently allow Class 1 only, if any. National and state park rules differ from local rules.
What to do about it: before buying, check the rules for the specific paths on your route. Look at your state’s DMV or transportation department, your city’s parks and recreation pages, and the managing agency for any trail you plan to use. Ten minutes of checking beats buying the wrong class.
Which class should you buy?
- Your route uses trails or multi-use paths: Class 1, for the widest access.
- You want throttle help for hills, starts, or mobility reasons: Class 2, and check your local path rules.
- Road commuting, longer distance, keeping up with traffic: Class 3.
- Hauling a loaded cargo bike: a throttle is genuinely useful for getting moving, so Class 2 capability is worth having.
Worth knowing: many bikes are configurable, and some ship as Class 2 with the ability to unlock Class 3 performance in the app. Check what the bike is set to out of the box and what it can legally be set to where you live.