The Three-Class System
Most states have adopted a three-class system for e-bikes, originally developed by PeopleForBikes. Understanding your bike's class determines where you can ride it.
- Class 1: Pedal-assist only, max 20 mph. Allowed on most bike paths and trails. The most universally accepted class.
- Class 2: Pedal-assist plus throttle, max 20 mph. Allowed on most roads and many bike paths. Some trails restrict throttle-equipped bikes.
- Class 3: Pedal-assist only, max 28 mph. Usually restricted to roads and bike lanes. Banned from most multi-use trails and paths.
Most folding e-bikes are Class 2 (pedal-assist plus throttle at 20 mph). This gives you the broadest practical access for commuting and errands while keeping you welcome on most shared paths.
States With the Friendliest E-Bike Laws
California, Colorado, and Washington have the clearest, most rider-friendly e-bike legislation. All three adopted the three-class system early and explicitly allow Class 1 and 2 e-bikes on bike paths and multi-use trails. No registration, insurance, or license is required.
New York was late to the game but now allows all three classes statewide after years of confusion where individual cities set their own rules. NYC specifically allows throttle e-bikes (Class 2) on streets and bike lanes.
States With Restrictions
A few states still treat e-bikes more like mopeds or motor vehicles:
- Alabama: Requires registration and a driver's license for e-bikes over 750W.
- Massachusetts: E-bikes need registration through the RMV. No bike path access for Class 3.
- New Mexico: E-bikes classified as "motor-assisted scooters." Helmet required. Must be 15+ to ride.
Most states fall somewhere in between. The trend is clearly toward lighter regulation, with 6 states updating their e-bike laws in 2025 alone to adopt the three-class framework.
Trail Access: The Biggest Gray Area
Federal land (National Parks, National Forests, BLM land) generally allows e-bikes on trails where traditional bikes are already permitted, thanks to a 2019 Department of Interior order. But individual park superintendents can override this, and many have.
State parks vary wildly. Some welcome all e-bike classes. Others ban anything with a motor. Check the specific park or trail system before you show up. The International Mountain Bicycling Association (IMBA) maintains a trail access database that is helpful for planning rides.
Practical Advice
Regardless of what your state law says, here is what works in practice: ride at the speed of traffic around you, yield to pedestrians, and do not use throttle on crowded shared paths. Most enforcement issues come from speed complaints, not classification technicalities. A Class 2 e-bike ridden at 12 mph on a bike path will never draw attention. The same bike blasting past joggers at 20 mph on throttle will generate complaints fast.