A person operating a motorcycle shall ride only upon the permanent and regular seat attached thereto, and the operator shall not carry any other person, nor shall any other person ride on a motorcycle unless the motorcycle is designed to carry more than one person, in which event a passenger may ride upon the permanent and regular seat if designed for two persons, or upon another seat firmly attached to the rear or side of the operator.
(Prior Code, § 71.85) Penalty, see § 70.99