Group Riding Laws in California
Last reviewed by BikeSize EditorialThis guide is for general information only and is not legal advice. Laws change - verify current rules with your state DOT or a licensed attorney before relying on this for any legal matter. Read full disclaimer.
The rule
California permits cyclists to ride two abreast on the roadway. California has no statutory two-abreast cap for bicycles. The general lane-position rule under Cal. Veh. Code § 21202 ('as close as practicable to the right-hand curb') applies; group rides commonly default to single file in narrow lanes and two abreast where the lane is wide enough to share. See Cal. Veh. Code § 21202 (Operation on roadway - lane position). Read the national group riding laws guide for comparison. For low-light road and group visibility, compare bike lights for commuting and unlit roads.
Statute
What this means in practice
Group rides in California can ride two abreast on most roads. Keep an eye on traffic behind — if a faster vehicle can't safely pass, single up.
Bigger roads, longer rides
Size a road bike for shoulders, group rides, and rural highways
Highway-access and group-riding rules favour riders who can hold a straight line at speed. Start with a frame that fits.
See the road sizing guide