Are Electric Bikes Legal in Massachusetts?

Yes. Electric bicycles are legal in Massachusetts, and they have a statute of their own, M.G.L. c. 85, sec. 11B3/4, which almost nobody sends riders to. That section gives an e-bike rider “all of the rights and privileges” and “all of the duties” of a bicycle rider, with one reversal that matters more than any other rule on the device: an electric bicycle may not be ridden on a sidewalk, while an ordinary bicycle may be, outside a business district, when safety requires it. Massachusetts law also recognises only two kinds of electric bicycle. Under M.G.L. c. 90, sec. 1 an “electric bicycle” has fully operable pedals and a motor of 750 watts or less, and must meet the definition of a class 1 or a class 2 machine. A class 1 assists only while the rider is pedaling and cuts out at 20 miles per hour. A class 2 can propel the bicycle without pedaling and also cannot assist past 20. There is no class 3 in the Massachusetts definitions, and a device that exceeds the two that exist is not an “electric bicycle” under the chapter, which changes which rules reach it. To talk through a Massachusetts e-bike crash, call Jim Glaser Law at (617) JIM-WINS. The line is answered 24 hours a day. The first telephone consultation is offered without charge.

The Statute Almost Nobody Sends You To

Search for the rules on riding an electric bike in Massachusetts and the answer that comes back is usually the bicycle statute, M.G.L. c. 85, sec. 11B. That is a reasonable place to look. An e-bike has pedals, handlebars, two wheels and a chain, and sec. 11B is the section that tells a Massachusetts cyclist where they may ride, what equipment the bike needs, and when a helmet is required.

It is also the wrong section to stop at, and stopping there produces a wrong answer on the question riders ask most.

The right section is M.G.L. c. 85, sec. 11B3/4, titled “Electric bicycles; rights, privileges, duties; regulations.” Subsection (a) borrows its central term from the motor vehicle chapter: “the term ”electric bicycle” shall have the same meaning as in section 1 of chapter 90.” Subsection (b) then does the work:

Except as otherwise provided in this section, an electric bicycle or an operator of an electric bicycle shall be afforded all of the rights and privileges, and shall be subject to all of the duties, of the operator of a bicycle or duties related to a bicycle set forth in sections 11B and 11B1/2, any general or special law, regulation or local ordinance; provided, however, that electric bicycles shall not be ridden or operated on sidewalks.

Read that proviso next to clause (3) of sec. 11B, which says that “bicycles may be ridden on sidewalks outside business districts when necessary in the interest of safety, unless otherwise directed by local ordinance.” The bicycle statute permits the sidewalk. The electric bicycle statute forbids it, flatly, with no business-district carve-out and no safety exception written into the sentence.

A rider who reads the statute that governs bicycles, and reasonably concludes that their electric bicycle is a bicycle, gets the single most common practical question about the machine exactly backwards.

What Massachusetts Counts as an Electric Bicycle

The definition lives in the motor vehicle chapter rather than the bicycle chapter, which is part of why it is easy to miss. M.G.L. c. 90, sec. 1 defines an “Electric bicycle” as:

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.

Three conditions, all of which must hold. Fully operable pedals. A motor of 750 watts or less. And compliance with one of exactly two classes, each separately defined in the same section:

Class 1 electric bicycle. “an electric bicycle or tricycle equipped with 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.”

Class 2 electric bicycle. “an electric bicycle or tricycle equipped with 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.”

The difference between them is the throttle. A class 1 assists only while you pedal. A class 2 will move the bike on motor power alone. Both stop assisting at 20 miles per hour.

Three further sentences in the same section place the device inside the wider scheme, and each of them removes a burden a rider might otherwise expect. The definition of “Motorized bicycle,” the moped category that requires a licence, registration and a helmet, carries a proviso that it “shall not include an electric bicycle.” The definition of “Motorized scooter,” the category governed by the stricter rules in c. 90, sec. 1E, says it “shall not include a motorcycle, electric bicycle or motorized bicycle or a 3 wheeled motorized wheelchair.” And the definition of “Motor vehicles” ends with a sentence that decides a great deal: “The definition of ”Motor vehicles” shall not include electric bicycles or motorized bicycles.”

That last exclusion is why an electric bicycle needs no registration, no number plate, no inspection sticker and no insurance policy under the compulsory motor vehicle law. It is not a motor vehicle in Massachusetts.

Answer Capsule

Electric bikes are legal in Massachusetts and are governed by M.G.L. c. 85, sec. 11B3/4. Under subsection (b) an electric bicycle and its operator receive all the rights and privileges, and carry all the duties, of a bicycle under M.G.L. c. 85, sec. 11B and sec. 11B1/2, with one express reversal: “electric bicycles shall not be ridden or operated on sidewalks,” where an ordinary bicycle may be ridden on a sidewalk outside a business district when necessary in the interest of safety. M.G.L. c. 90, sec. 1 defines an electric bicycle as a bicycle or tricycle with fully operable pedals and an electric motor of 750 watts or less that meets the class 1 or class 2 definition; a class 1 assists only while pedaling and stops assisting at 20 miles per hour, and a class 2 may propel the bicycle without pedaling and also cannot assist past 20. Massachusetts does not define a class 3. The same section excludes electric bicycles from the definitions of motorized bicycle, motorized scooter and motor vehicle, so no registration, plate, inspection or compulsory auto policy is required. Under sec. 11B3/4 a municipality or state agency may regulate or prohibit e-bikes on a bike path after public notice and a hearing, e-bikes are barred from natural-surface trails designated for nonmotorized traffic unless the agency allows them, manufacturers must affix a label showing class, top assisted speed and wattage, and tampering to change the speed capability is prohibited unless the label is replaced. Because subsection (b) imports the duties of sec. 11B, it also imports that section’s civil protections, including that a helmet violation “shall not be used as evidence of contributory negligence.” Call Jim Glaser Law at (617) JIM-WINS; the first telephone consultation is free.

The Class 3 Question Massachusetts Has Not Answered

Most states that regulate electric bicycles use a three-class system. Class 3 is the fast commuter category: pedal assist that keeps working up to 28 miles per hour. A great many e-bikes sold nationally are built and marketed to that specification.

Massachusetts defines class 1 and class 2 and stops.

That is not an oversight a reader can safely fill in. The definition of “electric bicycle” in M.G.L. c. 90, sec. 1 requires the machine to meet “the requirements of a class 1 electric bicycle or a class 2 electric bicycle,” and those are the only two the section describes. A bicycle whose motor keeps assisting past 20 miles per hour does not meet either. Neither does one with a motor rated above 750 watts, however it is classed on the box.

The consequence runs in a direction people do not expect. The protective sentences quoted above are all written to reach an “electric bicycle” as the section defines it. The exclusion from the motor vehicle definition, the exclusion from the motorized bicycle definition, the exclusion from the motorized scooter definition, and the whole of sec. 11B3/4 with the rights and privileges it confers: each of them attaches to the defined term. A device outside the definition is outside the shelter those sentences provide, and the General Laws do not then say what it is instead.

What the statute does say, in the same section, is who decides a doubtful case:

In doubtful cases, the registrar may determine whether or not any particular vehicle is a motor vehicle as herein defined. If he determines that it should be so classified, he may require that it be registered under this chapter, but such determination shall not be admissible as evidence in any action at law arising out of the use or operation of such vehicle previous to such determination.

Two things are worth taking from that. The registrar holds the classification power for the hard cases. And a later classification is not admissible against a rider for a crash that happened before the determination was made, which is a protection written directly into the section.

This article does not tell anyone that their particular bicycle is unlawful. That question depends on the machine’s actual assisted top speed, its actual motor rating, and what the label says, and those are facts rather than law. What can be said from the text is that the two Massachusetts classes end at 20 miles per hour and 750 watts, and that a rider buying a bike advertised as class 3 should know that the category does not exist in the Massachusetts definitions.

Bike Paths, Bikeways and Dirt Trails

Subsection (b) puts e-bikes on the road with the same rights as bicycles. Subsections (c) and (d) treat paths and trails separately, and they do not give the same answer.

Paved bike paths and bikeways. Under subsection (c), a “municipality, local authority or state agency with jurisdiction over a bike path or bikeway after public notice and a public hearing may adopt ordinances or regulations prohibiting or otherwise regulating the operation of electric bicycles on such paths, including, but not limited to, the imposition of speed limits.” The default is that the path is open. A local rule can close it or put a speed limit on it, but only after notice and a hearing, which means the restriction is a matter of public record where one exists.

Natural-surface trails. Subsection (d) flips the default. An electric bicycle “shall not be operated on a trail designated for nonmotorized traffic” that a public body has jurisdiction over, “if such trail has a natural surface tread made by clearing and grading the soil and no surfacing materials have been added.” The same subsection lets the agency adopt regulations permitting e-bikes on such a trail, again after public notice and a hearing. So on a graded dirt trail the answer is no unless the agency has said yes, which is the reverse of the rule for a paved path.

The practical consequence for a rider planning a route is that the two questions have to be asked separately, and that the local rule, where it exists, is the one that governs.

The Label and the Tampering Rule

Two subsections of sec. 11B3/4 are aimed at manufacturers and at anyone modifying a bike, and both can matter after a crash.

Subsection (f) requires that “Manufacturers and distributors of electric bicycles shall apply a label that shall be permanently affixed, in a prominent location, to each electric bicycle containing the classification number, top assisted speed and motor wattage of the electric bicycle.”

Subsection (g) provides that “No person shall tamper with or modify an electric bicycle so as to change the motor-powered speed capability or engagement of an electric bicycle, unless the person appropriately replaces the label required by subsection (f).”

Subsection (e) adds that electric bicycles “shall comply with the equipment and manufacturing requirements for bicycles adopted by the United States Consumer Product Safety Commission,” and subsection (h) gives the secretary of transportation authority to promulgate further regulations, subject to filing proposed regulations with the House and Senate clerks and the joint committee on transportation at least 30 days before they take effect.

The label is the reason these matter in a claim rather than only in a shop. After a collision, the question of what the bicycle was capable of is often contested, and the label is the manufacturer’s own permanent statement of the class, the top assisted speed and the wattage. It is worth photographing the label at the scene, before the bicycle goes anywhere. Where a bike has been modified, subsection (g) makes the replacement of the label the rider’s responsibility, and an unmodified label on a modified bike is a problem that is better identified early than discovered by an adjuster.

What to Do After an E-Bike Crash, In Order

1. Photograph the label on the bicycle at the scene, before the bicycle is moved or repaired. The label is the manufacturer’s own permanent statement of the class, the top assisted speed and the wattage, and what the machine was capable of is frequently disputed after a crash.
2. Confirm which class the bicycle is from the classification number on that label. A class 1 assists only while the rider is pedaling; a class 2 can propel the bicycle without pedaling.
3. Report the crash to the police department in the city or town where it happened if it involved personal injury, or property damage over one hundred dollars, as clause (11) of sec. 11B requires.
4. Note whether the crash happened on a sidewalk, a paved bike path, or a natural-surface trail, since the rule differs for each and sec. 11B3/4 forbids sidewalk riding outright.
5. Note whether a helmet was worn, but do not assume it decides anything: a helmet violation cannot be used as evidence of contributory negligence in a civil action.
6. Call Jim Glaser Law at (617) JIM-WINS to talk through the claim. The line is answered 24 hours a day, and the first telephone consultation is offered without charge.

Electric Bicycle Classes Against the Motorized Scooter

Category	Top assisted speed	Contributory-negligence shield	What it needs to operate
Class 1 electric bicycle	20 mph, assistance only while pedaling	Yes, carried over from sec. 11B	No registration, plate, inspection or licence
Class 2 electric bicycle	20 mph, motor can propel without pedaling	Yes, carried over from sec. 11B	No registration, plate, inspection or licence
Motorized scooter (c. 90, sec. 1E)	20 mph	No, sec. 1E contains no such shield	A helmet and a driver’s licence

Key Terms

Class 1 electric bicycle. An electric bicycle whose motor provides assistance only when the rider is pedaling and that ceases to assist at 20 miles per hour.

Class 2 electric bicycle. An electric bicycle whose motor may propel the bicycle without pedaling and that also cannot assist past 20 miles per hour.

Motorized bicycle. The moped category, requiring a licence, registration and a helmet, that by definition does not include an electric bicycle.

Motorized scooter. The stand-up scooter category governed by the stricter rules in M.G.L. c. 90, sec. 1E, which by definition does not include an electric bicycle.

Tort threshold. The rule under M.G.L. c. 231, sec. 6D that limits recovery for pain and suffering unless medical expenses exceed $2,000 or the injury falls into a listed category such as a fracture.

What Carries Over From the Bicycle Statute, Including the Protections Worth Money

Because subsection (b) imports the duties of sec. 11B and sec. 11B1/2, the ordinary bicycle rules apply to an e-bike rider except where sec. 11B3/4 says otherwise. The ones riders ask about most:

Helmets. Clause (2)(iii) of sec. 11B requires that “Any person 16 years of age or younger operating a bicycle or being carried as a passenger on a bicycle on a public way, bicycle path or on any other public right-of-way shall wear a helmet,” meeting Consumer Product Safety Commission standards and secured by straps. Above 16 the statute does not require one.

Age. Section 11B3/4 sets no minimum age for operating an electric bicycle, and neither does sec. 11B. That is a real difference from the moped category, where M.G.L. c. 90, sec. 1B bars anyone under 16 from operating a motorized bicycle and requires a licence or learner’s permit. Local rules can differ, and the statute’s silence is not the same as a positive permission, but the General Laws do not set an age for an e-bike.

Lights and reflectors. Clause (8) of sec. 11B requires, from half an hour after sunset to half an hour before sunrise, a white front lamp visible at 500 feet and a rear red lamp and red reflector visible at 600 feet. Clause (9) adds pedal reflectors or ankle reflective material and side visibility at 600 feet.

Brakes. Clause (7) requires a braking system that will bring the bicycle from 15 miles per hour to a smooth safe stop within 30 feet on a dry, clean, hard, level surface.

Reporting a crash. Clause (11) requires the operator to report “any accident involving either personal injury or property damage in excess of one hundred dollars, or both, to the police department in the city or town in which the accident occurred.” That threshold is low, and a report made at the time is usually the most useful single document in a later claim. The Massachusetts crash reporting rules cover the parallel motor vehicle obligation.

Then there are sentences in these sections that are worth actual money in a claim, and they are the reason the classification question matters beyond ticketing.

Clause (2)(iv) of sec. 11B says that a violation of the helmet clause or the child-seat clause “shall not be used as evidence of contributory negligence in any civil action.” Clause (8) says that a violation of the rear lighting requirement “shall not be used as conclusive evidence of contributory negligence in any civil action.” Section 11B1/2, the helmet statute for manually-propelled wheeled vehicles, carries its own sentence in the same terms. The tail of sec. 11B adds a fourth: “A violation of any provision of this section by a minor under the age of eighteen shall not affect any civil right or liability nor shall such violation be considered a criminal offense.” Violations of sec. 11B are otherwise punishable by a fine of not more than twenty dollars, except the helmet subclause.

An insurer defending a claim against a driver who hit an e-bike rider reaches for the rider’s own conduct early, and the missing helmet is usually the first thing raised. Under these sections it is off the table as evidence of the rider’s negligence.

The contrast with the stand-up scooter is sharp, and it is one of the clearest reasons the category a device falls into is worth getting right. M.G.L. c. 90, sec. 1E, which governs motorized scooters, requires a helmet and a driver’s licence, caps speed at 20, and bars operation after sunset and before sunrise, and it contains no contributory-negligence shield at all. The electric scooter article works through what that absence costs a scooter rider. An electric bicycle, because sec. 11B3/4 routes it through the bicycle statute instead, keeps the shields.

Who Pays When an E-Bike Rider Is Hit by a Car

The claim against an at-fault driver runs like any other Massachusetts road injury claim, with one wrinkle at the front.

The driver’s bodily injury liability coverage is the main source of recovery, and it responds when the driver is at fault.

Personal Injury Protection usually does not reach the rider. M.G.L. c. 90, sec. 34A defines PIP as covering the named insured, household members, authorized operators and passengers of the insured vehicle, and “any pedestrian struck by the insured’s or obligor’s motor vehicle.” A person riding a bicycle is not a pedestrian, and an e-bike rider is squarely in the bicycle category under sec. 11B3/4. The rider’s own auto policy, if they have one, pays PIP when they are struck “as a pedestrian,” which is again not this situation. The PIP explainer sets out how the benefit works and who it reaches.

The tort threshold. Because the claim arises out of the use of a motor vehicle by the driver, M.G.L. c. 231, sec. 6D limits recovery for pain and suffering unless reasonable medical expenses exceed $2,000 or the injury falls into one of the listed categories, including a fracture, permanent and serious disfigurement, or loss of a body member. The serious injury threshold article covers each category.

Comparative negligence. M.G.L. c. 231, sec. 85 bars recovery only where the injured person’s negligence is greater than the total negligence of those they are claiming against, and otherwise reduces damages in proportion. A rider who was partly at fault still has a claim. The comparative negligence guide explains how the percentages are argued, and the statutory shields described above are what keep several of the usual arguments out of that calculation.

The deadline. Generally three years from the date of the crash under M.G.L. c. 260, sec. 2A, with shorter notice periods where a public entity is involved. The statute of limitations article covers the exceptions. If the driver left the scene or had no insurance, see uninsured and underinsured motorist coverage.

The broader rules of the road that a rider shares with every cyclist, including the four-foot passing law and how a right hook is analysed, are in the Massachusetts bicycle laws article.

Frequently Asked Questions

Q: Are electric bikes legal in Massachusetts?

A: Yes. M.G.L. c. 85, sec. 11B3/4 governs them and gives an electric bicycle and its operator all the rights and privileges, and all the duties, of a bicycle under sec. 11B and sec. 11B1/2, with the express exception that “electric bicycles shall not be ridden or operated on sidewalks.” To qualify, the machine must meet the M.G.L. c. 90, sec. 1 definition: fully operable pedals and an electric motor of 750 watts or less, meeting the class 1 or class 2 description.

Q: Can I ride an electric bike on the sidewalk in Massachusetts?

A: No. This is the rule most often gotten wrong, because the bicycle statute gives the opposite answer. Clause (3) of M.G.L. c. 85, sec. 11B allows bicycles on sidewalks outside business districts when necessary in the interest of safety unless a local ordinance says otherwise. The proviso at the end of sec. 11B3/4(b) removes that for electric bicycles, with no business-district carve-out written into the sentence.

Q: Do I need a licence, registration or insurance for an e-bike in Massachusetts?

A: Not under the General Laws. M.G.L. c. 90, sec. 1 excludes electric bicycles from the definition of “Motor vehicles,” and separately excludes them from the definitions of “motorized bicycle” and “motorized scooter,” which are the categories that carry licensing, registration and helmet requirements of their own. An electric bicycle that meets the definition is treated as a bicycle for these purposes.

Q: Does Massachusetts allow class 3 electric bikes?

A: M.G.L. c. 90, sec. 1 defines class 1 and class 2 and does not define a class 3. Because the definition of “electric bicycle” requires the machine to meet the requirements of a class 1 or a class 2, a bicycle that keeps assisting past 20 miles per hour, or whose motor is rated above 750 watts, does not meet the Massachusetts definition, and the statutory exclusions written for an “electric bicycle” are written for the defined term. The General Laws do not say what such a device is instead. The same section gives the registrar authority to determine, in doubtful cases, whether a particular vehicle is a motor vehicle, and provides that such a determination is not admissible as evidence in an action arising out of use before the determination was made.

Q: Is there a minimum age to ride an electric bike in Massachusetts?

A: Section 11B3/4 sets none, and neither does sec. 11B. That is different from the moped category: M.G.L. c. 90, sec. 1B bars anyone under 16 from operating a motorized bicycle and requires a valid driver’s licence or learner’s permit. A rider 16 years of age or younger on an electric bicycle must wear a helmet under clause (2)(iii) of sec. 11B. Local rules can add requirements the General Laws do not.

Q: Can I take an e-bike on a bike path or a trail?

A: Paved paths and dirt trails have opposite defaults. Under sec. 11B3/4(c) a municipality, local authority or state agency with jurisdiction over a bike path or bikeway may prohibit or regulate electric bicycles, including by setting speed limits, but only after public notice and a public hearing, so a paved path is open unless such a rule has been adopted. Under subsection (d) an electric bicycle may not be operated on a trail designated for nonmotorized traffic that has a natural surface tread made by clearing and grading the soil with no surfacing added, unless the agency with jurisdiction has adopted a regulation permitting it, again after notice and a hearing.

Q: If I was not wearing a helmet when a car hit my e-bike, does that hurt my claim?

A: Massachusetts law takes that argument off the table by statute. Clause (2)(iv) of M.G.L. c. 85, sec. 11B provides that a violation of the helmet clause “shall not be used as evidence of contributory negligence in any civil action,” and sec. 11B1/2 carries a sentence in the same terms. Because sec. 11B3/4(b) subjects an electric bicycle operator to the duties set out in those sections, the protections that travel with them apply. A rear lighting violation is likewise not “conclusive evidence” of contributory negligence under clause (8). Whether any particular argument an insurer raises falls inside these sentences depends on the facts of the crash.

Q: Does my e-bike have to have a label on it?

A: Yes, and it is the manufacturer’s obligation. Subsection (f) of sec. 11B3/4 requires manufacturers and distributors to permanently affix a label in a prominent location showing the classification number, top assisted speed and motor wattage. Subsection (g) prohibits tampering with or modifying an electric bicycle so as to change its motor-powered speed capability or engagement unless the person appropriately replaces that label. After a crash the label is worth photographing before the bicycle is moved or repaired, because what the machine was capable of is frequently disputed.

Q: Is Jimmy Knows AI giving me legal advice?

A: No. This is general information about Massachusetts law, not legal advice, and reading it does not create an attorney-client relationship. Whether any of it applies to a particular bicycle or a particular crash depends on facts that are not in this article, including the machine’s actual assisted speed and motor rating, what any local ordinance provides, and how the collision happened. For advice about a specific situation, speak with a Massachusetts attorney.

Talking to a Lawyer

An electric bicycle crash tends to produce two arguments quickly. The first is about the machine, meaning what class it was, how fast it would go, and whether it had been modified, and that argument is usually settled by the label and by records that exist at the moment of the crash and not for long afterwards. The second is about the rider, and it is the familiar one: the helmet, the lighting, the lane position. Several of the sentences quoted above exist precisely to keep that second argument out of the fault calculation.

Jim Glaser Law can be reached at (617) JIM-WINS. The line is answered 24 hours a day. The first telephone consultation is offered without charge.