The Rulebook · draft under verification

E-bike law in Colorado.

The rules at a glance

Max motor power: 750 W
Top assisted speed: 28 mph
Minimum age: 16+ (Class 3)
Helmet: Class 3 operators/passengers under 18 must wear a helmet
Licence required: No
Registration required: No

The three classes

Class	Assist	Top speed	Throttle
Class 1	Pedal-assist	20 mph	No
Class 2	Throttle + assist	20 mph	Yes
Class 3	Pedal-assist	28 mph	No

107 USD-priced models in the index publish specs within these limits

Official source

What the statute actually says

CRS 42-1-102(28.5): 3-class system, Class 1/2 to 20 mph, Class 3 to 28 mph (speedometer required). Under 16 may not operate a Class 3; Class 3 riders under 18 must wear a helmet. [Source: Colo. Rev. Stat. 42-1-102(28.5)]. Draft — verify against the current statute before relying on it.

Draft summary under verification — not legal advice. Summaries were ported from Redtail eBikes' rulebook research (pulled 2026-07-03) and are being re-verified against the official sources linked above. State law changes; confirm before you rely on it.