The Colorado Department of Transportation is clarifying the legal distinctions between e-bikes and e-motos to address frequent public confusion regarding regulation [1].

Distinguishing these vehicles is critical for safety and legal compliance, as the two categories are subject to different state laws and usage restrictions. Misclassifying a vehicle could lead to regulatory penalties or safety risks on shared paths.

A spokesperson for the Colorado Department of Transportation said one of the main questions they receive is what the difference is between an e-bike and an e-moto [1]. The agency provided these guidelines to help riders determine which vehicle they are operating.

Under state law, e-bikes are subject to specific caps on speed and power [2]. Class 1 e-bikes are limited to a maximum speed of 20 mph [2]. Class 2 e-bikes are limited to 28 mph [2]. Additionally, electric motors for e-bikes are capped at 750 watts [2].

E-motos do not fall under these specific state law limits [2]. While e-bikes are designed for lower speeds and lower power output to remain compatible with bicycle infrastructure, e-motos are built for higher performance and are regulated differently than bicycles.

These distinctions allow the state to maintain safety standards on bike paths and roads. By adhering to the 750-watt limit [2], e-bikes remain within a power bracket that is generally considered safe for shared-use environments, unlike the more powerful e-motos.

“E-bikes are capped at either 20 mph or 28 mph depending on the class”

The clarification by the Colorado Department of Transportation underscores a growing regulatory challenge as electric vehicle technology evolves. By strictly defining e-bikes through wattage and speed caps, the state ensures that high-powered electric motorcycles are not legally treated as bicycles, which prevents potentially dangerous vehicles from accessing pedestrian-heavy bike paths.