This 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
Massachusetts permits cyclists to ride two abreast on the roadway. Two abreast permitted on the roadway, but riders must move to single file when being overtaken by other traffic. Three or more abreast is not permitted. See Mass. Gen. Laws ch. 85, § 11B.