IS MY MOD LEGAL?

Wheel & Tire Protrusion in California

Conditional

California requires fenders, covers, or devices — including flaps or splash aprons — that minimize spray to the rear and are at least as wide as the tire tread. There is no inch limit on protrusion.

Verified against primary sources · August 2026

What the law says

Exemptions cover unregistered vehicles, trailers under 1,500 lb unladen, and pre-1971 vehicles under 1,500 lb. Fender flares that meet the width requirement satisfy the rule.

Specific Limits

Fenders required
must minimize rear spray and be at least as wide as the tire tread
Protrusion limit
none

Statute

Cal. Veh. Code § 27600

Read the statute →

Frequently Asked Questions

Are wheel & tire protrusion legal in California?
California requires fenders, covers, or devices — including flaps or splash aprons — that minimize spray to the rear and are at least as wide as the tire tread. There is no inch limit on protrusion.
What are the exact wheel & tire protrusion limits in California?
Fenders required: must minimize rear spray and be at least as wide as the tire tread. Protrusion limit: none. Source: Cal. Veh. Code § 27600.

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