Arizona E-Bike and Scooter Rules Explained for Parents

Before you buy: the three classes

Under A.R.S. 28-101, an electric bicycle has two or three wheels, functioning pedals, and a motor below 750 watts, and it must fall into a class. A Class 1 helps only while you pedal and cuts out at 20 mph. A Class 2 can move on the motor alone, also cutting out at 20 mph. A Class 3 is pedal assist only, up to 28 mph.

A.R.S. 28-819 gives an e-bike rider every right and duty of a bicyclist. Unless that section or a city says otherwise, all of Title 28's bicycle rules apply, including keeping near the right edge and riding no more than two abreast.

Before you buy: age and helmets

Arizona sets no minimum age for any class of e-bike or for electric stand-up scooters. Cities step in: In Phoenix, City Code 36-510 sets 16 as the minimum age for any e-bike, and section 36-308 applies the same age to e-scooters. A 14 year old legally riding in one town can be cited in the next.

The state's under 18 helmet law (A.R.S. 28-964) is about ATVs, motorcycles and motor driven cycles. Because the law's motor driven cycle definition specifically leaves out e-bikes and stand-up scooters, a teen on a legal e-bike is not covered. Plenty of families, and some cities, insist on one regardless.

A worked example: a 15 year old in Mesa and a 15 year old in Phoenix buy the same Class 1 bike. State law lets both ride, but in Phoenix the city's age 16 rule applies, so check where your teen will actually be riding.

Every ride: where each class is allowed

Paths are open to stand-up scooters and to Class 1 and 2 bikes by default; a city or state agency in charge of a path may close it to them.

Class 3 is the opposite: kept off paths unless a path runs alongside or inside a roadway, or the agency running it says yes. In traffic, all classes obey A.R.S. 28-815's bicycle rules, and since 28-819 counts e-bikes as bicycles, they may use marked bike lanes.

Sidewalks are left to cities, which A.R.S. 28-627 empowers to regulate scooters and e-bikes. Phoenix prohibits both on sidewalks (e-bikes in Code 36-504, e-scooters in 36-304), while cities such as Tempe and Chandler have their own ordinances. Read the code where you ride.

If it is a stand-up scooter

Under Arizona's definition, a stand-up scooter has a floorboard, handlebars, two or three wheels, motor or human power, a weight below 75 pounds, and a top speed no higher than 20 mph. A.R.S. 28-819 treats it like a bicycle, with no license or registration.

Each one must display its own alphanumeric ID, readable from at least 5 feet and not obscured by logos. The rule covers everyone, rental fleets and local governments included.

Smaller electric miniature scooters (below 30 pounds, maximum 10 mph) are defined separately. For rentals, the app spells out the operator's age limits and where to ride and park, under the permit the city issued.

If the bike stops being an e-bike

A moped, in Arizona law, is a bicycle with a small helper motor (no more than 50cc and 1.5 brake horsepower) that cannot exceed 25 mph; e-bikes and stand-up scooters are carved out by name. Motor driven cycles are motorcycles or motor scooters rated at 5 horsepower or under.

Both need a Class M license under A.R.S. 28-3101, and teens under 18 on a motor driven cycle must wear a helmet (A.R.S. 28-964). A bike over 750 watts, without usable pedals, or with a throttle that drives it beyond 20 mph needs a call to ADOT MVD about licensing and registration before it goes on public roads.

Insurance and keeping current

Thanks to A.R.S. 28-819 there is no title, registration, license tax, driver license or vehicle insurance requirement. You can still be liable after a crash, so check with whoever writes your renter's or homeowner's coverage.

What you read here matches the statute text on the Legislature's website in October 2026. Since e-bike laws have been shifting nationally, glance at azleg.gov for newer changes to 28-101 or 28-819 before counting on any age or path rule.