Every person riding or operating a bicycle on any street, alley, or public place in the city shall keep the bicycle on the extreme right of the traffic lane, and it shall be unlawful for two or more operators of bicycles to travel abreast on any street, alley, or public place in the city or to operate the bicycle on traffic lanes otherwise than in single file.

(Ord. 558, passed 12-22-65) Penalty, see 73.99