City of San Mateo Law Library
City of San Mateo Municipal Code.

11.56.120 RIDING - ON PERMANENT SEAT REQUIRED.

A person operating a motorcycle or bicycle shall not ride other than upon the permanent and regular seat attached thereto, nor carry any other person upon such motorcycle or bicycle, other than upon a firmly attached seat at the rear of the operator, nor shall any person ride upon a motorcycle or bicycle other than as above authorized.)