Wheel & Tire Protrusion in Illinois
Illinois passenger cars are not required to keep their wheels within the fender well.
Verified against primary sources · August 2026
What the law says
Rear fender splash guards apply only to second-division vehicles (trucks), excluding truck tractors. The 6-inch figure sometimes quoted comes from 625 ILCS 5/15-105, which governs loads projecting beyond the fender line, not tires.
Specific Limits
- Protrusion limit
- none
Exceptions & Exemptions
Wheels and tires must not extend beyond the fender wells or body of the vehicle unless covered by fender flares or extensions that prevent debris from being thrown
Frequently Asked Questions
Are wheel & tire protrusion legal in Illinois?
What are the exact wheel & tire protrusion limits in Illinois?
Are there exceptions for wheel & tire protrusion in Illinois?
Street-legal wheel & tire protrusion picks
Gear that helps you mod without a ticket in Illinois.
The standard fix when wheels stick out past the fender line.
Shop on AmazonSeveral states require them once tires extend beyond the body.
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