Massachusetts E-bike and Bicycle Laws
Massachusetts MGL c.90 s.1 & c.85 s.11B-3/4 (enacted via Massachusetts H.5151), in force since November 8, 2022. Classes, licensing, helmets, where you can ride, and the bicycle rules that apply to every rider. Reviewed October 2026.
The Short Version
Massachusetts counts Class 1 and Class 2 e-bikes as bicycles and asks for no license, registration, or insurance. It never adopted Class 3, so a 28 mph e-bike is a motorized bicycle here, with a license, plates, and a helmet at every age.
The Three E-bike Classes in Massachusetts
Class 1
Recognized: a 750-watt-or-less motor that helps only while pedaling and stops at 20 mph (MGL c.85 s.11B-3/4).
Class 2
Recognized: a throttle may drive the bike, assistance ends at 20 mph, and the rules match Class 1.
Class 3
Not recognized: a 28 mph e-bike falls under the motorized-bicycle definition in MGL c.90 s.1. Massachusetts S.2373 would create the class; its redraft stalled when formal sessions ended on July 31, 2026.
What Massachusetts Requires of E-bike Riders
Driver license
Not required for Class 1 or Class 2Recognized e-bikes need no license; an out-of-class bike becomes a motorized bicycle and then a driver license or learner permit is mandatory (MGL c.90 s.1B).
Registration
Not required for Class 1 or Class 2No plates for compliant e-bikes; a motorized bicycle must carry an RMV moped plate.
Insurance
Not requiredNo coverage mandate for any e-bike class, so theft and crash risk stay with the owner.
Minimum age
None for Class 1 or Class 2No minimum age for recognized e-bikes; motorized bicycles require riders to be 16 (MGL c.90 s.1B).
Helmet
Required at 16 and underRiders 16 or younger wear an approved helmet on Class 1 and Class 2 (MGL c.85 s.11B); motorized-bicycle operators wear one at any age.
Where You Can Ride an E-bike in Massachusetts
- Roads & bike lanes: allowed
Class 1 and Class 2 ride roads and bike lanes with bicycle rights and duties (MGL c.85 s.11B-3/4).
- Bike & multi-use paths: allowed
Open on paved bikeways and shared-use paths unless a city, town, or agency restricts them after notice and a hearing.
- Rail trails & state parks: allowed
DCR's paved paths and rail trails are generally open; natural-surface and single-track trails are not unless posted otherwise.
- Sidewalks: not allowed
Every e-bike is banned from sidewalks statewide, with a fine up to $20 (MGL c.85 s.11B-3/4).
- Out-of-class e-motos: not allowed
A 28 mph bike, a throttle bike that assists past 20 mph, or anything over 750 watts is a motorized bicycle: licensed, plated, helmeted, and barred from bike paths.
Massachusetts Bicycle Rules for Every Rider
Massachusetts bicycle law lives in MGL c.85 s.11B, and the 2022 vulnerable road user act added the strictest passing rule in the region. These rules apply to every bicycle; recognized Class 1 and Class 2 e-bikes follow them too, with the sidewalk exception noted above.
Helmets
Riders 16 and younger must wear an approved helmet (MGL c.85 s.11B). Operators of a motorized bicycle, which is what an out-of-class e-bike becomes in Massachusetts, wear one at every age.
Passing distance
Since April 1, 2023, a driver passing a cyclist or other vulnerable road user must leave at least 4 feet and may cross the center line to do it when safe (MGL c.89 s.2, as amended by Chapter 358 of the Acts of 2022).
Lights at night
From 30 minutes after sunset to 30 minutes before sunrise a bicycle needs a white front light visible from 500 feet, a red rear light or reflector visible from 600 feet, and pedal or ankle reflectors (MGL c.85 s.11B).
Sidewalks
Pedal bicycles may use sidewalks outside business districts unless a local ordinance prohibits it. E-bikes may not ride any sidewalk in the state, with a fine up to $20 (MGL c.85 s.11B-3/4).
Stop signs and signals
Cyclists stop fully at stop signs and red lights. Massachusetts has no stop-as-yield rule.
Lane position and dooring
Ride with traffic on the right side of the road; cyclists may pass on the right and ride two abreast where it does not impede traffic. A driver who opens a door into a cyclist's path is at fault and faces a fine (MGL c.90 s.14).
Statutes: MGL c.90 s.1 and s.1B; MGL c.85 s.11B and s.11B-3/4 (Massachusetts H.5151). E-bike data reviewed October 2026; bicycle rules reviewed October 2026. This page is a summary, not legal advice; local ordinances can add rules of their own.