Missouri
Last updated
Missouri adopted the standard three-class framework in 2021 under Missouri SB 176, effective August 28, 2021, and treats a compliant e-bike, with fully operable pedals and a motor of less than 750 watts, as a bicycle: no license, no registration, no insurance, and no title for Class 1, Class 2, or Class 3. Class 1 gives pedal assist up to 20 mph and Class 2 adds a throttle up to 20 mph, both legal for all ages, while Class 3 gives pedal assist only up to 28 mph with a speedometer required as equipment.
No one under 16 may operate a Class 3, though they may ride as passengers on one built for it, and Missouri has no e-bike helmet law for any class or age; local ordinances add one in spots, with Creve Coeur covering all ages, St. Louis County parks under 17, and Columbia at 15 and under. All three classes carry the same rights and duties as bicycles wherever bikes ride, and bicycle and multi-use paths are open to every class where bicycles are permitted; a locality may bar Class 1 or Class 2 only for safety reasons after a public hearing, and may bar Class 3 outright. Sidewalks work like bicycles outside business districts where the Model Traffic Ordinance applies, so rules are city by city. The rule that actually bites is in the state parks, where assist must cease at 20 mph: Class 1 and Class 2 ride the Katy Trail, Class 3 does not, and a 20 mph limit applies to everyone. Anything at 750 watts or more, or without operable pedals, defaults into motor-vehicle territory with license, registration, and insurance to match. Our Missouri bicycle and e-bike insurance page pairs these rules with the state's best rides, riding season, and events. The full breakdown is below.
Missouri E-bike Laws
Three classes, no license, no registration, and a Katy Trail rule worth knowing before you ride. Here is where Missouri stands on e-bikes.
Missouri adopted the standard three-class framework in 2021 and treats a compliant e-bike - fully operable pedals, motor of less than 750 watts - as a bicycle: no license, no registration, no insurance, no title. The rule that actually bites is in the state parks, where assist must cease at 20 mph - so the Katy Trail welcomes Class 1 and Class 2 but not Class 3.
The motor assists only while the rider is pedaling and ceases at 20 mph (RSMo 301.010(15)); legal for all ages.
The motor may propel the bike on throttle alone but cannot assist past 20 mph; legal for all ages.
Assistance only while pedaling, up to 28 mph - and a speedometer displaying mph is required equipment (RSMo 307.194).
RSMo 307.194 exempts e-bike riders from driver-license law by name for every class - that rule stays with gas mopeds.
No registration, no title, no plate - the same statute exempts e-bikes from all of it.
RSMo 307.194 exempts e-bikes from Missouri's financial-responsibility law - coverage is on you.
No one under 16 may operate a Class 3, though they may ride as passengers on one built for it (RSMo 307.194.8); no age floor for Class 1 or Class 2.
Missouri has no e-bike helmet law for any class or age; local ordinances add one in spots - Creve Coeur (all ages), St. Louis County parks (under 17), Columbia (15 and under).
Where You Can Ride
- Roads & bike lanesAll three classes carry the same rights and duties as bicycles wherever bikes ride (RSMo 307.194.1).
- Bicycle & multi-use pathsOpen to all classes where bicycles are permitted; a locality may bar Class 1 or Class 2 only for safety reasons after a public hearing, and may bar Class 3 outright.
- SidewalksAllowed like bicycles outside business districts where the Model Traffic Ordinance applies (RSMo 300.347) - yield to pedestrians and signal before passing; rules are city-by-city.
- State parks & Katy TrailPark trails open to bicycles admit e-bikes whose assist ceases at 20 mph - Class 1 and Class 2 ride the Katy Trail, Class 3 does not, and a 20 mph limit applies to everyone.
- Out-of-class e-motos750 watts or more, or no operable pedals, means the machine is not an electric bicycle - it defaults into motor-vehicle territory with license, registration, and insurance to match.
Effective August 28, 2021 under Missouri SB 176 (2021). Statutes: RSMo 301.010(15), 307.194, 307.180, 300.347; 10 CSR 90-2 (state parks). Cities and park districts can add their own path and trail restrictions — check signage where you ride. Last reviewed July 2026.