Electric Bike Speed Limits in the USA: 20 vs 28 MPH, Classes & Local Rules

Last legally reviewed: September 9, 2026.
This guide provides general regulatory information, not individualized legal advice

In the widely used U.S. three-class framework, Class 1 and Class 2 motor assistance ends at 20 mph, while Class 3 pedal assistance ends at 28 mph.

Those figures are assisted-speed cutoffs, not a nationwide permission to ride at 20 or 28 mph everywhere.

Your actual legal speed can be lower because state law, city rules, park or trail access rules, and posted speed limits may also apply. [1][2]

If you are trying to decide whether your own e-bike is legal—or whether you may ride it at a certain speed on a specific route—use three checks:

1. Identify what the speed number actually means.
2. Identify the bike’s legal classification.
3. Identify the authority that controls where you are riding.

This guide walks through those checks in that order.

What Is the Legal Speed Limit for an Electric Bike in the USA?

Start with the class framework, but do not stop there.

The class tells you how the motor normally assists and where that assistance ends. It does not by itself settle every road, bike path, park, trail, or city rule.

Class 1, Class 2 and Class 3 at a Glance

ClassMotor behaviorAssistance ends
Class 1	Pedal assist only	20 mph
Class 2	Motor may propel the bike without pedaling	20 mph
Class 3	Pedal assist only	28 mph

The National Park Service uses these 20/20/28 definitions in its regulations, making them a useful official example of the common three-class model.

However, states and local authorities can define or apply e-bike rules differently. Treat this table as your starting point, not your final legal answer. [2]

Why Federal, State and Local Rules Can Give Different Answers

One of the biggest sources of confusion is treating a federal e-bike definition as if it created one nationwide riding-speed rule.

It does not.

Federal consumer-product law, state vehicle law, local ordinances and facility rules answer different questions.

Legal layerWhat you should check
Federal product definition	Whether the bike fits the federal low-speed electric-bicycle definition for consumer-product purposes
State law	Bike classification plus licensing, registration, age, helmet or road-use requirements
Local law	City or municipal operating-speed and access rules
Facility or posted rule	Park, trail, campus, greenway or path access and posted speed restrictions

A useful way to think about e-bike legality is:

Federal product definition → State classification → Local operating rules → Facility/posted rules

The answer that matters during your actual ride can depend on all four.

What the Federal Definition Actually Says

Under 15 U.S.C. § 2085, a low-speed electric bicycle is defined for federal consumer-product purposes as a two- or three-wheeled vehicle with:

• Fully operable pedals
• An electric motor of less than 750 watts
• A motor-only maximum speed of less than 20 mph under the statute’s specified test conditions on a paved, level surface

The statutory test uses a 170-pound rider. [1]

That definition should not be rewritten as:

“20 mph is the federal riding-speed limit.”

It also should not be interpreted as:

“Anything under 750W is automatically legal everywhere.”

Public-road operation still depends on the laws that apply in the state and location where the bike is being used.

Current Examples Show Why Local Verification Matters

New York City currently limits e-bike, e-scooter and pedal-assist bicycle riders to 15 mph.

NYC DOT separately shows e-bike classes that can be capable of 20 or 25 mph. That creates a useful real-world example of the difference between the bike’s technical or class capability and the speed legally permitted while riding. [3]

New Jersey also demonstrates why generic national summaries can be misleading.

Under New Jersey MVC guidance effective in July 2026, e-bike riders must meet applicable licensing requirements and e-bikes must be registered. The rules also distinguish between low-speed electric bicycles and motorized bicycles for insurance purposes. [4]

The practical lesson is simple:

“My bike is a Class 1, 2 or 3 e-bike” does not automatically answer “How fast may I ride here?”

Does 20 or 28 MPH Mean Motor Cutoff or Total Riding Speed?

Usually, 20 or 28 mph refers to the point where motor assistance ends under the applicable class definition.

It does not mean the bicycle becomes physically incapable of going faster.

What Happens at the Cutoff?

At the assisted-speed cutoff, the motor stops contributing according to the bike’s class or configuration.

The bicycle does not normally apply its brakes simply because it reaches 20 or 28 mph.

Momentum, gravity and the mechanical drivetrain still exist.

Can You Pedal or Coast Faster?

Physically, yes.

Strong pedaling or a downhill slope can take an e-bike above its assisted-speed cutoff.

But that does not automatically mean you are legally allowed to ride at the higher speed.

A posted road, city or path speed limit may still control.

For example:

• Class 1 bike traveling at 22 mph: the motor can stop assisting at 20 mph while the rider’s pedaling carries the bike faster.
• Class 3 bike going downhill: assistance can end at 28 mph while gravity continues accelerating the bicycle.
• 28 mph-capable bike on a route with a 15 mph limit: the 15 mph operating limit controls the ride even though the bicycle is capable of assisting at a higher speed.

This distinction matters because motor cutoff and legal operating speed are two different concepts.

A bike may also fail to reach its nominal assisted cutoff because of:

• Hills
• Rider or cargo weight
• Headwind
• Battery state
• Tire condition
• Gearing
• Controller behavior

Those are performance factors. They do not change the legal meaning of the assisted-speed cutoff.

Do Throttle and Pedal-Assist E-Bikes Have Different Speed Rules?

They can.

Propulsion method is often part of the legal class definition, which means a throttle can be an important clue when identifying how a bike is classified.

However, the exact wording of the applicable state law matters.

Throttle-Only Speed

Throttle-only or motor-only speed tells you how fast the motor can propel the bicycle without the rider pedaling.

That can matter for both federal product definitions and state classifications.

Pedal-Assist Speed

Pedal-assist speed tells you how far motor assistance continues while the rider pedals.

In the commonly used three-class model:

• Class 1 pedal assistance ends at 20 mph.
• Class 3 pedal assistance ends at 28 mph.

A “Class 3” Product Listing With a Throttle Needs Checking

Suppose a retailer describes a bike as:

“Class 3 — 28 mph — Includes throttle.”

Do not decide whether it is legally Class 3 based only on that product badge.

Instead, check:

• How fast can the throttle propel the bicycle?
• How fast does pedal assistance continue?
• What configuration is active by default?
• What does the owner’s manual say?
• How does your state classify that combination?

Manufacturer terminology can be useful for understanding a product, but it is not a substitute for the applicable legal definition.

Can You Ride at 20 or 28 MPH on Roads, Bike Paths and Trails?

Not automatically.

Before riding, separate the bike’s capability from the rules governing the place where you are riding.

Use four checks:

1. Identify the bike’s class or assisted-speed capability.
2. Confirm that the class is permitted on the road, lane, path, park or trail.
3. Check for a posted or local operating-speed limit.
4. Identify the authority controlling the facility and verify its current rule.

Roads and Bike Lanes

For ordinary roads and bike lanes, start with state law and then check applicable city or municipal traffic rules.

Depending on the jurisdiction, the rules may address:

• E-bike classes
• Throttle use
• Road access
• Rider age
• Helmet requirements
• Operating speed

Multi-Use Paths and Greenways

A multi-use path may be controlled by a:

• City
• County
• State agency
• Transportation authority
• Parks department
• Independent path manager

A state may recognize your bike as a legal e-bike while the individual path restricts certain classes or imposes a lower operating-speed limit.

National Parks

On National Park Service land, e-bikes may be permitted only where traditional bicycles are permitted.

Individual park superintendents can also manage e-bike classes differently or impose specific conditions.

NPS advises riders to check the rules for the particular park and obey applicable speed limits and other restrictions. [2]

Privately Managed Trails and Campuses

Private campuses, managed trails and similar facilities can have their own conditions of use.

A bike may therefore comply with state e-bike law but still be restricted from a particular trail or property.

The key distinction is:

Bike capability ≠ route permission.

Advertised Top Speed vs Legal Assisted Speed

A manufacturer’s advertised “top speed” is not enough to determine whether an e-bike is legal to use on public roads or paths.

“Top speed” can describe several different things.

Assisted-Speed Cutoff

The speed where motor help is designed to end under a particular class or street configuration.

Throttle-Only Speed

The maximum speed at which the motor can propel the bicycle without the rider pedaling.

Physical Bicycle Speed

The speed the bicycle can physically reach through a combination of:

• Pedaling
• Gravity
• Momentum
• Motor assistance before cutoff

Unlocked or Off-Road Speed

Some bikes advertise faster configurable, unlocked or off-road modes.

Those figures may not represent the bike’s normal street-legal configuration.

Posted Route Speed

This is the speed you are legally permitted to travel on the actual road, path or facility.

It can be lower than the bike’s assisted-speed capability.

Hypothetical Product-Listing Example

Imagine a product page that says:

“35 mph top speed — Class 3.”

That information alone does not establish road legality.

Before buying or riding the bike, check:

• Class label
• Owner’s manual
• Throttle-only speed
• Pedal-assist cutoff
• Default street configuration
• Available faster modes
• Applicable state definition
• Local route restrictions

If the bike can switch into a faster mode, do not assume selecting a lower-speed setting automatically resolves every legal issue.

Some jurisdictions may consider capability, configuration, labeling, motor power or other statutory criteria.

The bike should be checked as it is actually configured and labeled.

Does Motor Wattage or Modification Change Legal Classification?

It can, but motor wattage or your actual riding speed alone is not a universal test.

Federal consumer-product law combines several criteria, including:

• Operable pedals
• Less than 750 watts
• A specific motor-only speed test

State law may use a different or additional classification framework. [1]

Avoid the “750W Is Legal Everywhere” Shortcut

Statements such as:

“750W e-bikes are legal everywhere.”

or:

“Every 1000W e-bike is automatically illegal.”

are too broad.

The correct answer depends on the legal definition applying in the relevant jurisdiction.

Modification Can Affect More Than Speed

Changing an e-bike’s assisted-speed capability can also create labeling or classification issues.

Washington provides a useful state-level example.

New electric-assisted bicycles sold in Washington must carry a label showing:

• Classification number
• Top assisted speed
• Motor wattage

If someone changes the bike’s speed capability, Washington law requires the label to be appropriately replaced. [5]

That is a Washington rule, not a nationwide labeling requirement, but it demonstrates why modification can matter legally.

Move to a jurisdiction-specific high-power or modification-law guide when:

• Motor assistance continues beyond the normal class framework
• Throttle speed is unusually high
• The bike has been derestricted
• The label no longer matches the configuration
• Motor power falls outside the applicable definition

The fact that you personally choose to ride the bike slowly does not necessarily determine its legal classification.

How to Check the Legal Limit for Your Bike and Route

Use this process whenever you:

• Buy a new e-bike
• Move to another state
• Travel with the bike
• Start using a new path or trail
• Change the bike’s configuration

It turns “check your local laws” into a specific verification process.

1. Read the Bike Label and Manufacturer Documentation

Confirm:

• Class number, if shown
• Top assisted speed
• Motor rating
• Whether a throttle is present
• Throttle-only speed
• Pedal-assist cutoff
• Default street configuration
• Any faster configurable mode

If the product listing conflicts with the manual or the class label is missing, do not guess.

Ask the manufacturer for specifications for the exact model and configuration.

2. Check the Current State Statute or DMV/MVC Guidance

Look for the state’s current rules covering:

• E-bike definition
• Class system
• Assisted-speed criteria
• Motor-power criteria
• Licensing
• Registration
• Rider age
• Helmet requirements
• Road-use restrictions

Prefer the actual statute or responsible government agency over a retailer’s summary.

3. Check the City, Park, Path or Trail Authority

Identify who controls the route.

Then check two separate questions:

Is this class of e-bike allowed here?

and

What operating-speed limit applies here?

A bike can comply with the state’s definition and still be restricted on a particular path, park or managed facility.

4. Recheck After Modification or Travel

Modification can change:

• Speed capability
• Configuration
• Classification assumptions
• Label accuracy

Travel can put the same bicycle under completely different state or local rules.

When you verify a rule, save the official source and record the date you checked it.

Quick E-Bike Speed-Law Checklist

Before buying, traveling or riding somewhere unfamiliar, check:

• □ I know the bike’s class—or I know it falls outside the normal Class 1/2/3 framework.
• □ I know the motor-assisted cutoff, not just the advertised “top speed.”
• □ I know whether the bike has a throttle.
• □ I know how fast the throttle can propel the bike.
• □ I checked the motor specification.
• □ I know whether the bike has been modified or unlocked.
• □ I checked the current state e-bike definition.
• □ I checked any licensing or registration requirement that applies.
• □ I checked relevant city or local operating rules.
• □ I confirmed the park, trail, path or facility allows my class of e-bike.
• □ I checked posted speed limits.
• □ I saved the official source and recorded when I checked it.

If your next question is how fast the bike will actually go in real-world riding conditions, use a dedicated e-bike performance and top-speed guide.

If the bike falls outside the normal Class 1/2/3 framework, use a dedicated high-power or modification-law guide rather than relying on a general speed-limit article.

Sources

[1] 15 U.S.C. § 2085 — Low-Speed Electric Bicycles, U.S. House Office of the Law Revision Counsel
https://uscode.house.gov/view.xhtml?edition=prelim&num=0&req=granuleid%3AUSC-prelim-title15-section2085

[2] Electric Bicycles (E-Bikes) in National Parks, U.S. National Park Service
https://www.nps.gov/subjects/biking/e-bikes.htm

[3] Electric Bicycles & More, New York City Department of Transportation
https://www.nyc.gov/html/dot/html/bicyclists/ebikes.shtml

[4] E-Bike Requirements — Effective July 2026, New Jersey Motor Vehicle Commission
https://www.nj.gov/mvc/vehicletopics/ebike.htm

[5] RCW 46.37.690 — Electric-Assisted Bicycle Labels and Modification, Washington State Legislature
https://app.leg.wa.gov/rcw/default.aspx?cite=46.37.690