Massachusetts E-Bike Laws (2026): Class 1, Class 2, and Why There Is No Class 3
By Christopher Murphy, Esq., Managing Partner at Scalli Murphy Law | Updated November 2026
Massachusetts recognizes two kinds of electric bicycles: Class 1 and Class 2. Both have pedals, a motor of 750 watts or less, and motor help that stops at 20 miles per hour. Massachusetts law does not require you to register an e-bike, carry a driver’s license to ride one, or buy insurance for it. You may not ride an e-bike on a sidewalk, and there is no Class 3 category in Massachusetts law.
The 2022 Law That Created Massachusetts E-Bike Rules
Massachusetts e-bike rules come from Chapter 176 of the Acts of 2022 (St. 2022, c. 176), approved on August 10, 2022. The law did two things.
First, it added definitions of “electric bicycle,” “class 1 electric bicycle,” and “class 2 electric bicycle” to the motor vehicle definitions in M.G.L. c. 90, § 1. Second, it created a new section, M.G.L. c. 85, § 11B3/4, which sets the riding rules.
The key line in § 11B3/4 is that an e-bike rider has “all of the rights and privileges, and shall be subject to all of the duties” of a bicycle operator, “provided, however, that electric bicycles shall not be ridden or operated on sidewalks.” In plain terms: ride it like a bicycle, follow bicycle rules, and stay off the sidewalk.
Section 1 of chapter 90 also says the definition of “motor vehicles” does not include electric bicycles. That is why an e-bike that meets the definition is not treated like a car, a moped, or a motorcycle.
What Counts as an E-Bike in Massachusetts
Under M.G.L. c. 90, § 1, an electric bicycle is “a bicycle or tricycle equipped with fully operable pedals and an electric motor of 750 watts or less that meets the requirements of a class 1 electric bicycle or a class 2 electric bicycle.”
Class 1 E-Bikes
A Class 1 e-bike has a motor that “provides assistance only when the rider is pedaling and that ceases to provide assistance when the bicycle reaches the speed of 20 miles per hour.” This is pedal assist only. No throttle.
Class 2 E-Bikes
A Class 2 e-bike has a motor that “may be used exclusively to propel the bicycle and that is not capable of providing assistance when the bicycle reaches the speed of 20 miles per hour.” In practice, this usually means a bike with a throttle. You can ride without pedaling, but the motor cuts out at 20 mph.
Why There Is No Class 3 in Massachusetts
Some e-bikes are sold as “Class 3,” with motor help up to 28 mph. Massachusetts does not recognize that category. The 2022 law defined only Class 1 and Class 2. MassDOT’s Safe Routes to School materials say it directly: “Class 3 e-bikes and ‘e-motos’ are not currently recognized categories of devices in Massachusetts.”
That has real consequences. A bike sold as a Class 3, or any e-bike whose motor helps past 20 mph, does not meet the Massachusetts definition of an electric bicycle. That means the bicycle rules in § 11B3/4, and the exclusion from the motor vehicle definition, do not clearly protect it.
What About 28 MPH Bikes and “E-Motos”?
Once a device falls outside the e-bike definition, Massachusetts law has no tidy category for it. A few points from the statute and the RMV:
- The motorcycle definition in c. 90, § 1 includes “any bicycle with a motor or driving wheel attached,” except a motorized bicycle (moped). A motorized bike that fails both the e-bike definition and the moped definition fits that motorcycle text, so it can be treated as a motorcycle.
- The statute also says that “in doubtful cases, the registrar may determine whether or not any particular vehicle is a motor vehicle.”
- For faster machines, the RMV says a two- or three-wheeler that goes over 30 mph and is not certified by its manufacturer as a motorcycle or motor-driven cycle with NHTSA “cannot be registered as a moped or a limited use vehicle and cannot be legally operated on the roads of the Massachusetts.”
If you own a fast e-bike or an “e-moto,” do not assume it is an e-bike because it has pedals or because the seller called it one. Check the motor wattage, the top assisted speed, and whether it carries a manufacturer certification.
Registration, License, and Insurance
Massachusetts law does not require a Class 1 or Class 2 e-bike to be registered with the RMV. It does not require the rider to hold a driver’s license or learner’s permit. It does not require the rider to buy insurance. The statutes are silent on all three, and the e-bike is excluded from the definition of a motor vehicle.
The answers change once a device is no longer an e-bike. A bike treated as a motorcycle brings motorcycle licensing, registration, and insurance. To check your device’s category, see our registration and insurance chart for e-bikes, mopeds, and scooters.
Where You Can Ride an E-Bike
Streets, Bike Lanes, and No Sidewalks
Because e-bike riders have the rights of bicycle operators, you may ride on the road and in bike lanes the way a bicyclist would. The sidewalk is the exception: under § 11B3/4, e-bikes may not be ridden on sidewalks anywhere in the state.
Bike Paths and Local Rules
E-bikes are generally treated like bicycles on bike paths, but towns and agencies can change that. Under § 11B3/4, a municipality or agency, “after public notice and a public hearing may adopt ordinances or regulations prohibiting or otherwise regulating” e-bikes on bike paths, including speed limits.
Some examples of how this plays out:
- DCR property. State parks and parkways have their own rules (302 CMR 12.12). E-bikes are prohibited on DCR sidewalks and on improved or natural-surface trails, except that Class 1 e-bikes are allowed on improved DCR trails that are 8 feet wide or more, where vehicles are allowed, and in bike lanes on DCR roads. Class 2 e-bikes are allowed only where vehicle traffic is permitted and in bike lanes on DCR roadways.
- Cambridge. The city says e-bikes are not permitted on sidewalks and that most multi-use paths allow e-bikes, with signs marking the exceptions.
Look for posted signs. For specific places, see where you can ride an e-bike or moped in Massachusetts.
Natural-Surface Trails
Under § 11B3/4, e-bikes may not be ridden on natural-surface trails designated for nonmotorized use unless the local authority permits it.
Required Label and No Tampering
An e-bike must carry a label showing “the classification number, top assisted speed and motor wattage.” The law also bars tampering with an e-bike to change its speed capability unless the label is replaced to match.
This matters more than it sounds. If you unlock a Class 2 bike so the motor helps past 20 mph, it no longer meets the definition of a Class 2 e-bike. After a crash, the label and the bike’s settings can become evidence of what kind of device you were riding.
Helmets
The bicycle helmet law, M.G.L. c. 85, § 11B, says: “Any person 16 years of age or younger operating a bicycle or being carried as a passenger … shall wear a helmet.” Because e-bike riders carry the duties of bicycle operators, riders and passengers 16 and under must wear a helmet on an e-bike too. Section 11B3/4 gives e-bike riders the duties set out in section 11B, which is where the helmet rule appears.
The same statute adds a protection that matters after a crash: a helmet violation “shall not be used as evidence of contributory negligence in any civil action.” If a 15-year-old rider without a helmet is hit by a car, the driver’s insurer cannot use the missing helmet as evidence that the rider was partly at fault.
Lights at Night
Bicycle lighting rules apply to e-bikes. When riding at night, you need:
- A white front lamp visible from 500 feet.
- A red rear lamp and a reflector visible from 600 feet.
E-Bike vs. Moped vs. Scooter
People use these words loosely, but Massachusetts law treats them very differently. The moped rules come from M.G.L. c. 90, § 1B and the scooter rules from M.G.L. c. 90, § 1E.
| E-bike (Class 1 or 2) | Moped (motorized bicycle) | Motorized scooter | |
|---|---|---|---|
| Driver’s license or permit | Not required | Required | Required |
| RMV registration | Not required | Required | No registration requirement in § 1E |
| Speed | Motor help stops at 20 mph | Not over 25 mph | Max 20 mph |
| Helmet | Age 16 and under | Operator and passenger | All ages |
| Where it can go | Roads and bike lanes; never sidewalks; paths subject to local rules | Bike lanes next to the road; not off-street recreational bike paths | Public ways, except limited-access or express highways posted against scooters or bicycles |
Mopeds “shall be excluded from off-street recreational bicycle paths.” Scooters may not be ridden after sunset or before sunrise and may not carry passengers. For the full rules, see our guides on moped licenses in Massachusetts and the registration and insurance chart.
Insurance After an E-Bike Crash
Massachusetts law treats a Class 1 or Class 2 e-bike as a bicycle and not a motor vehicle, and the PIP statute counts bicycle riders as pedestrians, so there is a strong argument that the car that hit you owes PIP benefits, though no Massachusetts appellate court has decided the question yet. We cover this in detail in PIP after an e-bike, moped, or scooter crash.
Proposed Change: Senate Bill S.3168
A pending bill, S.3168, “An Act to enhance the safe use of micromobility devices,” would add a Class 3 e-bike category (28 mph) to Massachusetts law. It would also change rules for mopeds and scooters, set speed tiers for micromobility devices, and add battery safety standards.
S.3168 is not law. The Joint Committee on Transportation reported it favorably on July 6, 2026, and it was referred to Senate Ways and Means. As of November 1, 2026, there has been no further action. Until a bill like this passes, the Class 1 and Class 2 rules above are the law. Read more in our overview of the proposed micromobility bill.
Frequently Asked Questions
Do e-bikes need to be registered in Massachusetts?
No. Massachusetts law does not require a Class 1 or Class 2 e-bike to be registered. A device that goes beyond the e-bike definition, such as one with motor help past 20 mph or a motor over 750 watts, may be treated differently.
Do you need a license for an e-bike in Massachusetts?
No. Massachusetts law does not require a driver’s license or learner’s permit to ride a Class 1 or Class 2 e-bike.
Are Class 3 e-bikes legal in Massachusetts?
Class 3 is not a recognized category in Massachusetts. A 28 mph e-bike does not meet the state’s e-bike definition. Pending bill S.3168 would add Class 3, but it has not passed.
Do I need insurance for my e-bike?
Massachusetts law does not require insurance for a Class 1 or Class 2 e-bike. If you are hit by a car, coverage questions depend on the driver’s policy and your household’s policies. It is also worth checking whether your homeowner’s or renter’s policy covers motorized devices.
Does a helmet matter if I get hit?
For riders 16 and under, the law requires a helmet, but a violation “shall not be used as evidence of contributory negligence in any civil action.” The driver’s insurer cannot use a missing helmet as evidence that a young rider was at fault.
Talk to a Lawyer About an E-Bike Crash
If you were hurt riding an e-bike in Massachusetts, or your child was, we can review what happened and explain your options. Learn more about our e-bike, scooter, and moped accident practice. Consultations are free. Call (617) 387-7000 or contact us online.
This article is general information about Massachusetts law, not legal advice for your situation.