#25 Bike racer Bill Jacoby, an amateur racer in the 1940s and a regular six-day racer in the 1950s, and teammate Ed Carfagnini won many races at the Humboldt Park bicycle bowl during the 1940s.

From Penny-Farthings to Ten-Speeds: The Wild Story of Chicago’s Great Cycling Craze

#25 Bike racer Bill Jacoby, an amateur racer in the 1940s and a regular six-day racer in the 1950s, and teammate Ed Carfagnini won many races at the Humboldt Park bicycle bowl during the 1940s.

Vehicles & Transportation