Colorado

Helmet Laws

• Bicycles: No statewide helmet requirement for traditional bicycles.

• E-Bikes:
  • Class 3 e-bike riders under 18 must wear a helmet.
  • Helmets are recommended for all riders, especially on higher-speed e-bikes.

E-Bike Classification

Colorado uses the standard 3-class e-bike system:

• Class 1: Pedal-assist only, up to 20 mph.

• Class 2: Throttle-assist, up to 20 mph.

• Class 3: Pedal-assist only, up to 28 mph.

✔ E-bikes are not classified as motor vehicles, and do not require a driver’s license, registration, or insurance.

Where You Can Ride

• Sidewalks:
  • E-bikes are prohibited on sidewalks unless permitted by local ordinance.
  • Some cities allow Class 1 or 2 e-bikes in bike-friendly areas.

• Bike Lanes:
  • All classes of e-bikes are generally allowed, unless posted otherwise.

• Multi-Use Trails:
  • Class 1 & 2 e-bikes are allowed.
  • Class 3 use is restricted unless permitted by local authorities.

• Roadways: All classes may operate in the rightmost lane or bike lane, following bicycle rules.

Age Restrictions

• Minimum age of 16 required to operate a Class 3 e-bike.

• No minimum age for Class 1 or 2.

Lights & Equipment

• At night, riders must have:
  • A white front light visible from 500 feet
  • A rear red reflector/light visible from 600 feet

• E-bikes must have working brakes.

Source:

Colorado Revised Statutes § 42-1-102 & § 42-4-1412.5

• Colorado DOT – E-Bike Rules Overview