Bicycles Are Vehicles Under Illinois Law
The most important thing every Illinois cyclist needs to understand is that a bicycle is legally considered a vehicle. Under 625 ILCS 5/1-105.1, a bicycle operated on a highway (which includes any public road) has all the rights and is subject to all the duties applicable to the driver of a motor vehicle.
This means you have the right to ride on the road. You belong there. But it also means you must follow traffic laws, including stopping at red lights and stop signs, signaling turns, and riding with the flow of traffic.
Knowing Illinois bicycle law is not just about following rules. It is about protecting your legal rights. If you are injured in a bicycle accident, your compliance with traffic laws strengthens your claim. If you violated a law at the time of the crash, the defense will use it against you to reduce your compensation.
Where Cyclists Can and Cannot Ride
Riding on the Road
Cyclists have the right to use any road in Illinois except limited-access highways (expressways and interstates). You do not have to ride in a bike lane if one exists. Illinois law allows cyclists to take the full lane when necessary for safety, such as when the lane is too narrow to share safely with a motor vehicle.
Under 625 ILCS 5/11-1505, cyclists riding slower than traffic should ride as close to the right side of the road as practicable. However, there are important exceptions. You may move left to avoid hazards like parked cars, debris, or potholes. You may also take the lane when making a left turn, when the lane is too narrow for a car and a bicycle to share side by side, or when approaching a right-turn-only lane while going straight.
Riding on the Sidewalk
Illinois state law does not prohibit riding on the sidewalk. However, Chicago’s municipal code does prohibit sidewalk cycling for anyone over the age of 12 in the business district and in some other areas. Outside of these restricted zones, riding on the sidewalk is allowed but not recommended because of the higher risk of collisions with pedestrians and vehicles at driveways and intersections.
If you ride on the sidewalk where it is legal, you must yield to pedestrians and give an audible signal before passing.
Bike Lanes
When a bike lane is present, cyclists are encouraged to use it but are not legally required to do so in most situations. You may leave the bike lane to avoid obstacles, make a turn, or when the lane is unsafe. Motor vehicles are prohibited from driving or parking in bike lanes.
Traffic Signals and Stop Signs
Cyclists must obey all traffic signals and stop signs, just like motor vehicle drivers. Running a red light or rolling through a stop sign on a bicycle is a traffic violation and can result in a citation.
If you are injured in an accident and the evidence shows you ran a red light or stop sign, the defense will argue you were at fault or contributed to the crash. Under Illinois comparative negligence law, this could reduce or eliminate your compensation.
Sensor-Activated Traffic Lights
Some traffic lights use sensors embedded in the pavement to detect waiting vehicles. Bicycles sometimes do not trigger these sensors. Under 625 ILCS 5/11-306(c-5), if a traffic signal fails to change to green within a reasonable time because it did not detect your bicycle, you may proceed through the red light with caution after waiting for a reasonable period, yielding to all other traffic.
Signaling and Communication
Illinois law requires cyclists to signal before turning or stopping. The standard hand signals are:
- Left turn: Left arm extended straight out to the left.
- Right turn: Left arm extended and bent upward at the elbow, or right arm extended straight out to the right.
- Stopping or slowing: Left arm extended and bent downward at the elbow.
You must signal at least 100 feet before a turn when riding on a road with a speed limit of 35 mph or less, and at least 200 feet before a turn when riding on a faster road. You are excused from signaling if you need both hands to control the bicycle.
Lighting and Visibility Requirements
If you ride between sunset and sunrise, Illinois law requires specific lighting equipment.
- A front white light visible from at least 500 feet. This can be attached to the bicycle or worn by the rider.
- A rear red reflector visible from 100 to 600 feet.
- A rear red light is also strongly recommended and required by Chicago municipal ordinance for nighttime riding.
Riding at night without proper lights and reflectors is a traffic violation. It also makes you far more vulnerable to accidents and weakens your legal position if you are hit by a car while riding in the dark without lights.
Helmet Laws in Illinois
Illinois does not have a mandatory helmet law for adult cyclists. There is also no statewide helmet requirement for children, although some local ordinances may differ.
While you are not legally required to wear a helmet, not wearing one can affect your injury claim. If you suffer a head injury in a bicycle accident and were not wearing a helmet, the defense may argue that your injuries would have been less severe if you had worn one. Under comparative negligence, this argument could reduce your compensation for head and brain injuries.
Wearing a helmet is always recommended for your safety, regardless of the legal requirement.
The Three-Foot Passing Law
Under 625 ILCS 5/11-703, drivers must leave a safe distance when passing a cyclist. Illinois law requires drivers to provide at least three feet of clearance between the vehicle and the bicycle when overtaking.
Drivers who pass too closely violate the law and are liable if the close pass causes a crash. If you were sideswiped or forced off the road by a driver who passed too close, this statute directly supports your claim.
Riding Two Abreast
Illinois law allows cyclists to ride two abreast on the road, but you must not impede the normal flow of traffic. On bike paths and trails, riding side by side is generally allowed as long as the path is wide enough.
When riding two abreast on a road, be aware that drivers may become frustrated and attempt unsafe passes. This does not excuse their behavior, but riding single file on busy roads reduces conflict.
Electric Bicycles (E-Bikes)
Illinois classifies electric bicycles into three classes:
- Class 1: Pedal-assist only, motor cuts out at 20 mph.
- Class 2: Throttle-assisted, motor cuts out at 20 mph.
- Class 3: Pedal-assist only, motor cuts out at 28 mph.
E-bikes are treated the same as traditional bicycles under Illinois law. They can be ridden on roads and bike paths. However, some local trail systems may restrict Class 3 e-bikes due to their higher speed. No special license, registration, or insurance is required to ride an e-bike in Illinois.
DUI on a Bicycle
Illinois DUI law (625 ILCS 5/11-501) applies to motor vehicles. Since a bicycle is not a motor vehicle, you cannot be charged with DUI for riding a bicycle while intoxicated in Illinois. However, riding while intoxicated is dangerous and can affect your legal claim. If you are injured in an accident while drunk on a bicycle, the defense will argue your intoxication contributed to the crash, reducing your compensation under comparative negligence.
Bicycle Equipment Requirements
Illinois law requires every bicycle to have:
- Brakes capable of stopping on dry, level pavement
- A front lamp and rear reflector for nighttime riding (discussed above)
Chicago’s municipal code adds additional requirements including a bell or other audible signal device. Sirens and whistles are prohibited.
Children and Bicycle Laws
Children under 12 may ride on the sidewalk in Chicago, even in the business district where adult cycling on sidewalks is prohibited. Parents should teach children the rules of the road, including signaling, stopping at intersections, and riding with traffic.
If a child is injured in a bicycle accident caused by another person’s negligence, the child’s parents or guardian can file a claim on the child’s behalf. Illinois applies different standards to children, recognizing that they cannot be held to the same level of care as adults.
How Bicycle Law Affects Your Accident Claim
In any bicycle accident case, both sides will examine whether the cyclist and the driver followed applicable traffic laws. Violations by the driver establish negligence and support your claim. Violations by you give the defense ammunition to argue comparative fault.
Common legal issues in bicycle accident cases include:
- Whether the cyclist was riding with or against traffic
- Whether the cyclist obeyed traffic signals
- Whether the cyclist had proper lights at night
- Whether the driver gave three feet of clearance when passing
- Whether the driver yielded to the cyclist at an intersection
- Whether the cyclist was in a bike lane or properly positioned on the road
An experienced bicycle accident attorney will analyze the facts of your case against Illinois bicycle law to build the strongest possible claim.
Know Your Rights on Chicago’s Streets
Understanding Illinois bicycle law protects you on the road and in the courtroom. If you are injured in a bicycle accident and have questions about your legal rights, an attorney can help you understand how the law applies to your specific situation.
Call Phillips Law Offices at (312) 346-4262 or contact us online at /contact/ for a free consultation.