E-Bike and E-Scooter Safety

As our community embraces new ways to get around, e-bikes (electric bicycles) have become an increasingly popular choice. If you're using an e-bike, it's important to take a moment to familiarize yourself with local laws to ensure everyone's safety on our roads and trails. It’s also important to understand the difference between e-bikes and electric motorcycles. Note that many rules also apply to e-scooters (electric scooters) as well.

Here’s what you need to know about e-bike safety:

Is it an E-bike, or Something Else?


There are clear differences between regular bicycles, e-bikes, and electric motorcycles. These distinctions are outlined in Washington State law:

Bicycles are powered by pedals exclusively.  

E-bikes are bicycles that are assisted by an electric motor. Some e-bikes only provide electric assistance when the rider is pedaling while others can propel the e-bike using electric power alone. Either way, a legal e-bike will always have pedals and a maximum speed of 20mph (when using only electric power) or 28mph (with the rider pedaling).

Electric motorcycles are powered by an electric motor and some do not have pedals. Foot pegs or other brackets or supports are not considered pedals.

It’s important to note that any e-bike that provides assistance beyond 28 mph is classified as an electric motorcycle under State Law. Make sure you know what kind of e-bike you're riding (or if it's not an e-bike after all).


Why do these differences matter?

Bicycles and e-bikes are legal to ride on most roads and trails when ridden safely, and do not require specific licenses to operate.

Electric motorcycles may only be operated on the road if it meets the requirements established in state law and is registered with the Washington Department of Licensing. Electric motorcycles are prohibited on sidewalks, parks, trails, and paths.

Electric motorcycles are subject to the same rules and licensing requirements as other motorcycles. This means to ride one, you need a valid Driver’s License with a motorcycle endorsement, and you must follow the same road rules as motorcycles and other vehicles. It is illegal to operate anything considered an electric motorcycle without a valid license.

Now that you know the differences between e-bikes and electric motorcycles, let’s look at the dos and don’ts of e-bike riding:

Responsibilities as a Rider:


Where can e-bikes be ridden on Mercer Island?

In general, e-bikes can be used most places traditional bikes are allowed. But, it also depends on what class of e-bike you have:

  • Class 1: These e-bikes assist up to 20 mph and only provide electric assistance when the rider is pedaling.
  • Class 2: These e-bikes assist up to 20 mph but can propel the bike without pedaling.
  • Class 3: These e-bikes assist up to 28 mph and have additional rules, including a minimum rider age of 16.
  • Electric Motorcycles: E-bikes that go faster than 28 mph (with or without pedals) are classified as electric motorcycles, not e-bikes. Different laws apply.

Class 1 and Class 2 e-bikes can be ridden anywhere traditional bikes are permitted – including mixed-use trails, bike lanes, and roads – unless otherwise noted.

Class 3 e-bikes can be ridden on roads and paved trails that allow motorized vehicles but are not allowed on soft surface trails. Class 3 e-bikes are also prohibited on sidewalks and shared-use paths.


Is there anywhere I can’t ride an e-bike on Mercer Island?

E-bikes cannot be ridden on trails marked as non-motorized and trails with a natural dirt surface. In effect, this means e-bikes cannot be ridden in the Bike Skills Area, in Pioneer Park, or anywhere where posted signs prohibit motorized vehicles.


What are the rules of riding an e-bike?

E-bike operators must follow all road rules and avoid riding in a way that endangers people, property, or obstructs travel. In simple terms, this means you should ride with common sense and safety in mind! And of course, follow the rules:

All riders must:

  • Yield to pedestrians on sidewalks and in crosswalks.
  • Obey posted speed limits. Exceeding the posted speed limit is a traffic violation.
  • Only ride e-bikes (or any bike) where allowed.
  • Be at least 16 years old if riding a Class 3 e-bike in the State of Washington. 
  • Remember, if your e-bike goes faster than 28 mph it is NOT an e-bike. It is an electric motorcycle and different laws apply.

How should I stay safe when riding an e-bike?

First and foremost, make sure you’re following the rules of the road. Riding safely keeps us all on the road, commuting, exploring, and getting to where we want to go. You should also follow these tips to keep yourself and others safe:

  • Educate yourself on road rules and use bike paths or bike lanes whenever possible.
  • Wear appropriate gear, including a helmet designed for e-bike riders.
  • Slow down ahead of intersections and hazards.
  • Be visible with lights and reflectors.
  • Use warning devices like bells.
  • Keep tires properly inflated.
  • Practice safe mounting and dismounting due to the weight of e-bikes.

The Mercer Island Police Department, Eastside Fire & Rescue, and the City of Mercer Island strongly recommend wearing a proper helmet when riding any bike, scooter, or similar wheeled transportation. It’s important to remember that e-bikes can reach high rates and speed – without a helmet, you face significantly higher risks of serious injury.

E-bikes have become especially popular for kids on the Island. It’s important that parents talk with their children about safe operations. Riding fast on two wheels can be fun, but it can also be very dangerous especially for young or inexperienced riders.

Make sure you're familiar with your responsibilities when riding an e-bike. They are in place to ensure your safety and the safety of those around you.

Rule Violations and Bad Behavior:


Will the Mercer Island Police Department be enforcing these rules?

Absolutely. The Police Department is responsible for ensuring our community’s safety, and that includes making sure bicycles and e-bikes are being ridden correctly and considerately. Violators of these rules are subject to penalties. If you are an e-bike rider, know the rules, know your e-bike classification, and ride safely!

The Mercer Island Police Department and the Mercer Island School District are also coordinating to provide outreach and education within the school system on the importance of safe riding for kids.


How should I report illegal or concerning bike behavior?

If you are witnessing unsafe or illegal behavior on an e-bike as it is happening, call 911. These behaviors include failure to follow the rules of the road, operating an e-bike in an area where it is prohibited, and reckless riding.

To report an incident that is no longer in-progress, call the 24-hour non-emergency dispatch line at 425-577-5656. For routine questions or concerns, you can also e-mail the Mercer Island Police Department at mi-records@mercerisland.gov.

It’s important that all riders follow the rules and ride with consideration for others. The safety of riders and those around them is the reason there are laws and regulations surrounding e-bikes.

Important Links:

  • MICC Chapter 9.30 – Park Rules
  • RCW 46.61.710 Mopeds, EPAMDs, motorized foot scooters, personal delivery devices, electric-assisted bicycles, class 1 electric-assisted bicycles, class 2 electric-assisted bicycles, class 3 electric-assisted bicycles—General requirements and operation.
  • RCW 46.20.500 Special endorsement—Penalties—Exceptions.
  • RCW 46.61.261 Sidewalks, crosswalks—Pedestrians, bicycles, personal delivery devices.
  • RCW 46.37.530 Motorcycles, motor-driven cycles, mopeds, electric-assisted bicycles—Helmets, other equipment—Children—Rules.