Can You Get a DUI on a Bicycle in California?
- Blair Goss

- 21 hours ago
- 5 min read
If you use a bicycle as your primary mode of transportation, the question “Can you get a DUI on a bicycle in California?” may have run through your mind at least once. While drunk driving laws do not apply to cyclists across the state, the California Vehicle Code §21200.5 does, and it covers Cycling Under the Influence (CUI), which works much differently from a traditional DUI.
In this guide, we'll walk through what CUI means, how it's enforced, and what your options are if you're facing a charge. Let's take a look.

California Law on Cycling Under the Influence (Vehicle Code §21200.5)
Under California Vehicle Code section 21200.5, cycling under the influence is illegal, but only if you're riding on a public road. Unlike a traditional DUI stop, where the officer would check for a BAC of 0.08% or higher, there is no "legal limit" for cyclists in the same sense.
For prosecutors, since there is no blood alcohol content (BAC) to rely on, they must evaluate the officer's observations, field sobriety test results, and other evidence before arguing that the rider was impaired at the time. Goss Law can explain what self defense weapons are legal in california.
What Must the Prosecutor Prove in a Bicycle CUI Case?
To secure a conviction, the prosecution has to establish the following elements:
The person was riding a bicycle.
They were riding on a public highway.
They were doing so under the influence of alcohol or drugs.
Here is how each of these elements is explained under California law:
What Counts as a Bicycle Under California Law?
A bike, under California law, is a transportation device that has a belt, chain, and gears, and is propelled through human power only. Motorized vehicles, including most motorized bikes or e-bikes with a throttle, generally do not fall under §21200.5 and may be treated differently under the law.
What Is Considered a Public Highway?
A public highway includes any public road or street where traffic laws apply, including those with stop signs. California law doesn't consider a private road or parking lot as a public highway.
How Is Impairment Determined?
Determining impairment makes CUI cases complicated, as there is no specific blood alcohol content or legal limit that helps prosecutors establish guilt. Instead, they must show that the alcoholic or drug content in the rider's system or the combined influence of alcohol, drugs, or other intoxicants actually impaired their ability to ride safely.
Can You Get a Traditional DUI on a Bicycle in California?
The California Vehicle Code §23152 applies to motor vehicles, and not a traditional bicycle, which means that a bicyclist cannot qualify for a DUI. However, if you're riding a bicycle intoxicated and a police officer stops you, they might charge you with CUI under §21200.5.
It's worth noting that a motorized bike or moped falls under a different class of vehicle, and the consequences for driving while intoxicated and getting arrested could be far more severe for the rider. For more information, hire a criminal attorney in Sacramento.
How Police Investigate Bicycle CUI Cases
A police officer can stop a cyclist if they have probable cause to believe a law is being violated. In practice, this often starts with observable behavior like erratic cycling, swerving, nearly falling off the bike, or riding the wrong way on a street.
Once stopped, the arresting officer will typically look for common signs of impairment. Officers may note the following in their reports and use them as evidence later:
Flushed face
Smell of alcohol
Slurred speech
Difficulty maintaining balance
Officers may also administer field sobriety tests, though their reliability in a cycling context can be questioned. From there, an officer may request a chemical test in the form of a breath or blood test.
Here's an important distinction to keep in mind. Implied consent laws, which require motor vehicle drivers to submit to chemical testing, generally do not apply to cyclists in the same way. A blood test performed on a person's blood pursuant to a warrant is a different matter, but voluntary testing is just that, voluntary.
Penalties for Cycling Under the Influence in California
A CUI under Vehicle Code §21200.5 is an infraction, not a misdemeanor crime. The base fine is $150 (maximum fine of up to $250), which is much lighter than the criminal penalties that come with a motor vehicle DUI conviction.
That being said, the consequences can still add up. Court fees and assessments are typically added on top of the base fine, and the total amount owed can end up being much higher than that $150 figure suggests.
One thing that surprises a number of people is the driver's license question. A CUI conviction does not typically result in a driver's license suspension or affect your driving privileges in the way a motor vehicle DUI would.
However, keep in mind that related charges can still arise from the same incident. If you are convicted of public intoxication alongside a CUI, that is a misdemeanor and does go on your criminal record. A criminal conviction of that kind carries potential jail time of up to six months. That's a very serious outcome from what many people assume is a minor situation.
Common Defenses to Bicycle CUI Charges
If you were arrested, a number of defenses may be available depending on the specific facts of your case. Some of the common defenses in CUI cases that criminal defense attorneys may use include:
The incident didn't happen on a public highway.
The officer's observations were incorrect (legal drug use or prescription medications may produce similar intoxicated effects).
The sobriety tests were not reliable.
The timing and accuracy of the chemical tests were off.
There is a genuine explanation for why the cyclist's behavior was off.
Every case is different, and the strongest arguments depend entirely on the facts in front of you. Trying to navigate that alone is very difficult, and it's important to have someone in your corner who knows how these cases work.

How a Criminal Defense Attorney Can Help Fight a Bicycle CUI Charge
Legal help makes a real difference in these cases. A criminal defense attorney will:
Review police reports and officer observations.
Obtain and analyze any testing records.
Identify weaknesses in the prosecution's evidence.
Spot constitutional issues with the stop itself.
Negotiate reductions or dismissals where the evidence allows.
Prepare a defense for trial when necessary.
Even an infraction can affect employment, professional licenses, and other areas of your life. It's important not to treat this as a minor inconvenience. Goss Law can consult on other questions such as how long does a dui affect your insurance in california?
Facing a CUI in California? Schedule a Free Consultation with Goss Law!
If you were caught riding a bike drunk in Sacramento or anywhere in California, reach out to Goss Law as soon as possible. The sooner you get legal help, the better off you will be. Schedule a free consultation with an experienced criminal defense attorney today!

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