Group Riding Laws in Colorado
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
Colorado permits cyclists to ride two abreast on the roadway. Two abreast permitted; persons riding two abreast shall not impede the normal and reasonable movement of traffic and shall ride within a single lane. C.R.S. § 42-4-1412(6). See C.R.S. § 42-4-1412(6) (Operation of bicycles - two-abreast clause).
Statute
What this means in practice
Group rides in Colorado 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