(625 ILCS 5/11-1505.1) (from Ch. 95 1/2, par. 11-1505.1)
    Sec. 11-1505.1. Persons riding bicycles or motorized pedal cycles upon a roadway shall not ride more than 2 abreast, except on paths or parts of roadways set aside for their exclusive use. Persons riding 2 abreast shall not impede the normal and reasonable movement of traffic and, on a laned roadway, shall ride within a single lane subject to the provisions of Section 11-1505.
(Source: P.A. 83-549.)