Irvine, CA Mobility & Curb Rules: Bike Lane Rules (2026)

Chapter 2 of Division 7 governs how bicycles, electric bicycles and motorized scooters use Irvine's streets. Sec. 4-7-204(A) requires anyone riding slower than the normal flow of traffic to stay "as close as practicable to the right-hand curb or edge of the roadway," with exceptions for passing, preparing a left turn, or avoiding hazards including a lane too narrow to share safely with a vehicle. Subsection (C) caps group riding at two abreast on a roadway or bicycle lane. Sec. 4-7-208 is the specific bicycle-lane rule: once a bicycle lane exists, a rider moving slower than traffic "shall ride within the bicycle lane," and may leave it only to pass another rider or pedestrian, prepare a left turn, avoid debris or a hazardous condition, or approach a lawful right turn, and even then only after signaling under California Vehicle Code Division 11, Chapter 6.

Sec. 4-7-206 separately makes it "unlawful and a violation of this division" to operate a bicycle, scooter, skateboard or similar device on any street, sidewalk, bicycle path, bicycle lane or public trail in an unsafe manner, a list that includes riding against traffic in a bike lane, lifting a wheel off the ground, or failing to obey a posted sign restricting operation. Enforcement is handled by the Irvine Police Department and other peace officers under Sec. 4-7-103, which classifies violations as infractions (escalating to a misdemeanor where circumstances warrant) and sets civil fines of $100 for a first violation, $200 for a second, and $500 for a third or later violation; officers may also impound a bicycle or device used in violation until the rider complies.