In light of recent questions about the laws regulating bicycles and e-bikes in Hawaii, Kauai’s Office of the Prosecuting Attorney has prepared an overview of some of the regulations that govern these vehicles. The overview comes after two children, who were riding an e-bike in Kekaha, were hit by a truck on February 1st, 2025, seriously injuring one of the children. Below are some of the key regulations concerning bikes and e-bikes on Kauai, as reported by the office:
- An electric bike in Hawaii is currently defined as a “low-speed electric bicycle.” This means a two or three wheeled vehicle with fully operable pedals and an electric motor of less than 750 watts with a maximum speed on a paved level surface of less than 20 miles per hour.
- Individuals under the age of 15 are prohibited from operating low-speed electric bicycles.
- Bicyclists and e-bike riders under the age of 16 are required to wear a properly fastened helmet.
- A bicyclist must ride on the permanent, regular seat attached to the bicycle. No bicycle shall be used to carry more persons at one time than the number for which it was designed and equipped.
- No person shall ride a bicycle equipped with a motor on any sidewalk.
- Traffic laws apply to persons riding bicycles.
- Any bicycle used from thirty minutes after sunset until thirty minutes before sunrise must have a head light, facing forward that emits a white light and is visible at least five hundred feet from the front.
- If an electric bike goes more than 20 mph, it is no longer classified as a bicycle under the Hawaii Revised Statutes. This means that it is subject to the rules governing vehicles. Depending on the horsepower, speed and wattage of the vehicle, these may be classified as mopeds, motor scooters or motorcycles. Operation of these vehicles may require a driver’s license.
- In other words, what may appear to be an e-bike may actually be a moped, motor scooter or motorcycle. For an e-bike that is technically a “moped,” it is prohibited to be driven at more than 35 miles per hour. Any moped operator on a public street, road, or highway, or on any public property must be at least 15 years old and must possess a valid driver’s license or instructional permit. Moped operators under the age of 18 years are required to wear a helmet.
Bicycles and e-bikes are incredibly popular activities on Kauai, offering both locals and visitors an enjoyable way to experience Kauai’s beauty at a relaxed pace. Bicycle riding is especially popular on the Kauai Multiuse Path in Kapaa, a 7-mile-long coastal bike path, and on the South Shore in the Poipu area. E-bikes, in particular, have gained traction in recent years, making it easier for riders to connect with the island’s charm in a unique way. Being mindful of the regulations concerning bikes and e-bikes can help to prevent accidents and ensure a safer experience for everyone.
