Class 1, 2 and 3; motor under 750 W (RSMo 301.010(15)). Excluded from 'motor vehicle' (301.010(36)).
Minimum age
No statewide rule found (checked RSMo 307.180 to 307.198).
Helmet rule
No statewide rule found (checked RSMo 307.180 to 307.198).
Where you can ride
On streets and highways, e-bike riders have the rights and duties of vehicle drivers under chapter 304 (307.188). No statewide path rule found in 307.180 to 307.198.
License / registration
Not required. Electric bicycles are excluded from 'motor vehicle' in 301.010 (registration) and 302.010 (driver licensing). The motorized-bicycle license rule in 307.195 does not cover them (307.180 excludes electric bicycles).
County & city rules
Highlighted counties have local e-bike rules we've checked against an official source. Everywhere else, state law applies. Parks, trails and HOAs can still post their own rules.
E-bike riders count as cyclists and may use county park trails open to cyclists unless posted otherwise. Other motorized vehicles are banned on trails. Trails open half an hour before sunrise to half an hour after sunset. Cyclist speed limit on county park trails is 15 mph unless posted. Keep right and pass on the left (SLCRO 616.050, 616.065; Ordinance 28,610, approved Nov 16, 2022).
The county defines an e-bike as having working pedals, a motor under 750 W and a top motor-only speed under 20 mph on level pavement (SLCRO 616.020).
Trails & paths
E-bike riders count as cyclists and may use county park trails open to cyclists unless posted otherwise. Other motorized vehicles are banned on trails. Trails open half an hour before sunrise to half an hour after sunset.
Age & helmet
Ordinance 28,610 sets no age or helmet rule.
Also
Cyclist speed limit on county park trails is 15 mph unless posted. Keep right and pass on the left (SLCRO 616.050, 616.065; Ordinance 28,610, approved Nov 16, 2022).
