The Colorado State Patrol is warning e-bike riders that changing their bikes for more speed, power or comfort can make them less safe. Modifications can also void the maker's warranty and make the bike illegal to ride in some communities.

"While modifications can frequently lead to component failure, the biggest concern for the community is the safety risk," stated Colonel Mathew C. Packard, chief of the Colorado State Patrol. "Altering a bike past class definitions can come with different legal requirements; for example, you might now have a motorcycle."

E-bikes have legal limits. The speed limit is 28 mph. The motor limit is 750W in the US. A bike changed to go past these limits may legally count as a moped or motorcycle.

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Under Colorado law, that means the owner must register and insure the vehicle with the Department of Motor Vehicles. Colorado also has a minimum age of 16 for motorcycles. All motorcycle riders must have a motorcycle endorsement on their license.

Some riders are making other changes too. Some remove bicycle chains to ride more like a motorcycle. Others remove safety switches that cut motor power when the brakes are applied.

Colonel Packard urged parents to pay attention.

"Parents of young riders need to understand that this isn't harmless and should get familiar with the components of their child's e-bikes so they can see when something is different," stated Colonel Packard. "Keep the conversation going about safe riding and making changes to the bike. Teens often want to customize their bikes, but modifications should be made by a professional."

The Colorado State Patrol added: "The Colorado State Patrol is raising awareness of the risks and requirements associated with micromobility devices. Riders and caregivers should know the rules and local ordinances of where they ride to ensure they are operating both legally and safely. Don't be an e-DIOT, be safe, and be seen as a responsible e-device rider."

For more information, visit the Colorado State Patrol micromobility website at https://csp.colorado.gov/micromobility-what-does-it-mean.