- Class 1
- Arizona Revised Statutes 28-819 defines Class 1 as pedal-assist only with assistance ending at 20 mph (750-watt max).
- Class 2
- ARS 28-819 defines Class 2 as throttle-capable e-bikes with motor assistance ending at 20 mph (750-watt max).
- Class 3
- ARS 28-819 defines Class 3 as pedal-assist only with assistance ending at 28 mph; Class 3 access is more limited on multiuse paths unless locally allowed.
- Helmet laws
- No statewide adult bicycle helmet mandate; riders and parents should still check local and facility-specific requirements.
- Age restrictions
- ARS 28-819 sets a minimum operator age for Class 3 and allows local regulation of path access.
- Road access
- Allowed on roads and bike lanes when meeting Arizona's e-bicycle definition.
- Trail access
- Class 1 and 2 are generally allowed on bicycle and multiuse paths unless prohibited; Class 3 is restricted unless a local authority allows it.
- Sidewalk rules
- Local ordinances vary; dense areas may restrict motorized bikes on sidewalks.
- Important notes
- Primary statute: A.R.S. §28-819. ADOT and county parks may restrict classes on specific paths. Educational summary only—not legal advice.