Lake Shore Drive is cleared of motor vehicle traffic and opened exclusively to bicyclists for several hours beginning at dawn.

The maximum route length is 30 miles (48 km), with riders beginning at Grant Park, going to the south and north extremes, and then returning to the starting point.

Rest areas with refreshments and repair services are located at the north and south ends of the route, as well as the starting point.

In addition, volunteers riding with the participants and stationed along the route offer assistance to riders.

A festival in Grant Park follows the event, and includes music, food, cycling-related activities, and vendors and exhibitors.