(625 ILCS 5/11-1503)
(from Ch. 95 1/2, par. 11-1503)
Riding on bicycles.
(a) A person propelling a bicycle
shall not ride other than upon or astride a permanent and regular seat attached thereto.
(b) No bicycle shall be used to carry more persons at one time than the
number for which it is designed and equipped, except that an adult rider
may carry a child securely attached to his person in a back pack or sling.
(Source: P.A. 82-132.)