The class system sorts motorcycles by engine size and power

A motorcycle license class determines which motorcycles you are legally allowed to ride. The class you hold depends on your age, how long you have held a license, and the engine size of the bike you want to ride. Most states use a tiered system where Class M or Class D is the basic motorcycle license, and you may need additional endorsements or restrictions depending on the bike's displacement (measured in cubic centimeters, or cc) and horsepower.

The specific class names and rules vary by state. Some states call them Class M, others use Class D or Class 6. What matters is understanding what engine size your license covers and whether you need to pass a separate test to upgrade to a larger bike.

Key Takeaways

  • Most states have at least two motorcycle license classes: one for smaller bikes (typically under 500 cc) and one for all motorcycles, with the larger class requiring a separate written and skills test.
  • Age restrictions explore in many states — riders under 18 or 21 may be limited to smaller displacement bikes even if they pass the test.
  • Some states impose a one-year waiting period before you can upgrade from a smaller class to an unrestricted motorcycle license.
  • You will need to pass both a written test and a riding skills test to move up to a higher motorcycle class, and some states require a safety course completion certificate.

How states organize motorcycle license classes

The most common structure is a two-tier system. The lower tier covers motorcycles under a certain displacement — often 500 cc or 650 cc — and may be called a restricted or limited license. The upper tier covers all motorcycles with no engine size limit. A few states add a middle tier for bikes between 500 and 750 cc.

Some states tie the class to your age. For example, you might be able to ride a 500 cc bike at 16, but you cannot ride anything larger until you turn 18. Other states let you take the test for the unrestricted class at any age but require you to hold the restricted license for a set period first — often one year — before you can upgrade.

A handful of states use a different naming system altogether. California calls its motorcycle license Class M, with an M1 for all motorcycles and an M2 for motorized bicycles. Hawaii uses Class 1 and Class 2. The safest approach is to check your state's DMV website or handbook to find the exact class names and what displacement each covers.

Age requirements and restrictions by class

Age is often the limiting factor, not the test itself. Many states will not issue a motorcycle license at all until you are 16, and some require you to be 18 for the unrestricted class. A few states have a minimum age of 14 for a restricted license on smaller bikes.

If you are under 18, your state may require you to complete a motorcycle safety course before you can test. Some states waive the written test if you show a certificate from an approved course. Others require both the course and the test. A few states let you take the test without the course but charge a higher fee or require a longer waiting period.

Once you turn the required age, the class restriction usually lifts automatically — you do not need to retest or renew anything. Your license itself will show which class you hold, and you can ride any bike that falls within that class.

What you need to test for a higher motorcycle class

To move from a restricted class to an unrestricted one, you will need to pass a motorcycle skills test. This is a separate test from your original motorcycle license test, and it is usually performed by a state examiner or an approved testing organization. The test involves riding a motorcycle through a course that measures your ability to brake, turn, and handle the bike at various speeds.

Most states also require a written test covering motorcycle-specific rules and safety. Some states let you skip the written test if you have held your restricted license for a certain period — often one year — without violations. A few states waive both tests if you complete an advanced motorcycle safety course and show the certificate.

You will need to bring your own motorcycle or use one provided by the testing site. The bike must be street-legal and registered in your name or the name of someone who is present. Some testing sites have bikes available for a small fee, but availability varies widely.

Restrictions that come with a lower motorcycle class

A restricted motorcycle license usually comes with a notation on your license card or a separate document listing what you cannot ride. The restriction is typically stated as a maximum displacement in cc or a maximum horsepower. For example, your license might say "not to exceed 500 cc" or "not to exceed 35 kW."

Riding a motorcycle that exceeds your class restriction is treated like driving without a valid license. You can be cited, fined, and in some states your license can be suspended. The motorcycle can also be impounded. Insurance may not cover an accident if you were riding outside your licensed class.

The restriction applies only to the type of bike you ride, not to where or when you ride it. You can ride on highways, at night, and in any weather that is legal for any other vehicle — the class just determines the engine size.

How to find your state's specific motorcycle classes

Your state's DMV website lists the exact class names, displacement limits, age requirements, and test procedures. Most states publish a motorcycle handbook that breaks down each class in detail. You can usually read it as a PDF or request a printed copy at your local DMV office.

If the handbook is unclear or you have questions about whether a specific bike falls within your class, call your state DMV directly. They can tell you the displacement of a bike you are considering and confirm whether your current license covers it. Some states also have a phone line specifically for licensing questions.

If you are upgrading from a restricted to an unrestricted class, ask the DMV whether you need to schedule a test appointment in advance or whether you can walk in. Some offices take walk-ins; others require an appointment weeks ahead. Knowing the process ahead of time saves a trip.

Frequently Asked Questions

Can I ride a motorcycle with a regular car driver's license?

No. A motorcycle license is separate from a car license, even if you hold both. You must have a valid motorcycle license or endorsement to ride any motorcycle on public roads. Riding without one is illegal and voids your insurance.

What if I want to ride a motorcycle larger than my class allows?

You will need to test for the higher class. Contact your state DMV to schedule a skills test and written test. Some states require you to hold your current class for a minimum period first — often one year — before you can upgrade.

Do I have to retake the test if I move to a different state?

Most states recognize motorcycle licenses from other states, so you can transfer your license without retesting. However, some states have different class systems or restrictions. Contact your new state's DMV to confirm whether your current license is valid or whether you need to take a new test.

Is a motorcycle safety course required to get a license?

It depends on your state and age. Some states require a course for riders under 18. Others make it optional but waive the written test or reduce the fee if you complete one. Check your state's DMV handbook or website to see whether a course is required where you live.

What happens if I get caught riding a bike that is too large for my license class?

You can be cited for operating a motorcycle outside your licensed class, which is similar to driving without a valid license. Penalties vary by state but typically include a fine, points on your record, and possible license suspension. Your insurance may also deny a claim if you were riding outside your class.