E-Bikes In Colorado

Why E-Bikes?

We are big fans of e-bikes, and we continue to champion programs and policies that make e-bikes safe and accessible to all. Electric bicycles allow more people to ride bikes, for further distances, and for more purposes. E-bikes (including adaptive and cargo e-bikes) can help more people commute by bike, carry groceries or other cargo (like kiddos!), or ride more and with more comfort and ease than a regular bicycle. E-bikes come in all shapes and sizes, from two-wheeled bikes to trikes to cargo e-bikes with large baskets in the front.

E-bike riders
E-bike

What Is An E-bike?

An e-bike is a bicycle that has a battery and a small electric motor (750 watts or less) to propel the bike or assist the rider in propelling the bike forward. In Colorado, electric bicycle riders are exempt from motor vehicle registration and license requirements.

By law, e-bikes in Colorado have three classes defined by their assisted speeds and whether they are pedal-assist (Class 1 and 3) or throttle-powered (Class 2). E-bikes must be labeled with all classes or the highest class they can achieve. 

Current Colorado Classifications of Electric Bicycles

>> Class 1

An electric bicycle that only provides assistance when the rider is pedaling; the motor ceases at 20 miles per hour (mph).

>> Class 2

An electric bicycle that provides assistance regardless of whether the rider is pedaling; the motor ceases at 20 mph.

>> Class 3

An electric bicycle that provides assistance only when the rider is pedaling; the motor ceases at 28 mph.  Class 3 electric bicycles must have a speedometer.

Source: Section 42-1-102 (28.5), C.R.S.

Electric motorcycle

What Is NOT An E-bike?

You may have seen people riding vehicles that resemble e-bikes—with two or three wheels and possibly pedals—but clearly exceed the speed and motor limits defined by the three-class e-bike system.

These are not e-bikes. They are more accurately classified as electric mopeds, electric motorcycles, or e-motos. 

With Bicycle Colorado’s support, our state has taken steps to strengthen legal e-bike definitions to try to ensure that out-of-class electric vehicles are not advertised, sold, labeled, or regulated as e-bikes.

Did You Know?

Household motor vehicle trips are one of the largest sources of transportation emissions in the U.S. In 2017, about 75% of these trips were 10 miles or less. For short to medium distances like these, e-bikes offer a powerful solution for both mobility and reducing emissions.

Unlike traditional bikes, e-bikes make it easier for more people to ride—whether it’s going farther, tackling hills, carrying groceries or kids, riding at an older age, or accommodating mobility challenges. And every e-bike trip helps shrink your carbon footprint

Source: Colorado Energy Office

Where Can I Ride My E-bike?

  • In general, individuals are allowed to ride Class 1 and 2 e-bikes wherever a standard bicycle can be ridden. However, local Colorado governments have ultimate control over where e-bikes can be ridden, so be sure to check your local ordinances if you are unsure.
  • In general, Class 3 e-bikes are only allowed to be ridden on roads, including in bike lanes and designated infrastructure within roads. Class 3 e-bikes are not allowed to be ridden on bike paths or multi-use trails unless the trail is within the street, or a local government has explicitly allowed this. Check your local ordinances to learn more.
  • Individuals under 16 years of age are not allowed to ride Class 3 e-bikes unless they are riding as a passenger on an e-bike with that intended purpose.
  • Individuals under 18 must wear a helmet while riding a Class 3 e-bike, either as an operator or a passenger.
  • Class 1 and 2 electric-assist mountain bikes (eMTBs) are allowed on trails in all 42 Colorado State Parks that allow mountain biking (please check which ones before you go). Rules for city and county trails vary greatly. Always check with the land manager before you attempt to ride an eMTB on dirt trails/singletrack. Do NOT ride your eMTB on a dirt trail if the rules are unclear. Always follow the Rules of the Trail and ride courteously.
  • E-bikes are currently allowed on nearly 40% of trails in national forests and grasslands. They are also allowed on thousands of miles of roads of national forests and grasslands at maintenance level 2, 3, or 4. Check with the U.S. Forest Service, Bureau of Land Management, or other governing agency before you attempt to ride an eMTB on public trails.

E-bike Battery Safety & Storage

Bicycles with lithium-ion batteries require proper charging and storage to both maximize the life of the battery and ensure safety. Here are some general tips for e-bike riders: 

  • Always consult and follow the manufacturer’s instructions for charging and storage.
  • Only use the manufacturer’s original equipment to charge your e-bike battery.
  • Don’t charge your e-bike unattended or overnight. Don’t leave it plugged in once it’s finished charging. 
  • Avoid storing your e-bike in extreme temperatures.


Visit https://www.call2recycle.org/e-bikes/ for more information on e-bike battery charging, storage, and disposal.

E-Bike Access In Colorado

The higher initial cost of an e-bike compared to a traditional bike can be a barrier for many interested riders. The state of Colorado, along with various municipalities and utility companies, has been actively developing incentives and rebate programs to make e-bikes more accessible.

E-bike Education

As e-bikes grow in popularity, education is essential to ensure their safe and responsible use. E-bike educational resources can help all riders, whether you are thinking about getting an e-bike or you’ve already started riding and you want to improve your knowledge and skills.

Other E-bike Safety Resources

Governor signing a bill.

The History Of E-bikes In Colorado

In many ways, Colorado is leading the way in e-bikes. You can learn more about the history and success of e-bikes in Colorado.