Missouri

Helmet Laws

• Bicycles:
  • No statewide helmet law in Missouri.
  • Some cities (e.g., St. Louis, Kansas City) require helmets for riders under 16 or all ages.

• E-Bikes:
  • No statewide helmet requirement, even for Class 3.
  • Local ordinances may apply. Helmet use is highly encouraged, especially for younger riders and high-speed e-bikes.

E-Bike Classification

Missouri follows the federal definition of e-bikes but has not adopted the 3-class system in state law.

• E-bikes are treated as bicycles, not motor vehicles, if:
  • They have motors under 750 watts
  • Do not exceed 20–28 mph (depending on assist type)

✔ No license, insurance, or registration is required.
✔ E-bikes must still follow bicycle traffic rules.

Where You Can Ride

• Sidewalks:
  • Local discretion — sidewalk riding is allowed in some cities, banned in others.

• Bike Lanes:
  • E-bikes are generally allowed unless restricted locally.

• Shared-Use Paths / Trails:
  • Permitted for Class 1 & 2–type e-bikes, depending on the managing agency.
  • Class 3 or throttle-based bikes may be restricted.

• Roadways:
  • E-bikes may be ridden on all roads where bicycles are allowed, except highways or interstates.

Age Restrictions

• No state-imposed minimum age, but riders of higher-speed e-bikes should be 16+ for safety.

• Local regulations may set age limits for throttle-assist or faster bikes.

Lights & Equipment

• Required at night:
  • A white front light visible from 500 feet
  • A red rear reflector or light visible from 500 feet

• E-bikes must have functional brakes and reflectors for safety.

Source:

Missouri Revised Statutes – Chapter 307 (Bicycle Regulations)