Rob Sadowsky As head of the Chicagoland Bicycle Federation since July 2004, Sadowsky has led community-building and outreach programs, such as the annual "Bike the Drive" ride.
Lee Ravenscroft A longtime humanitarian who worked in Central America in the late 80s and 90s with the National Engineering University, Ravenscroft founded the Working Bikes cooperative in 2001, modeled on similar organizations in Toronto and Boston, to supply communities in developing countries with two-wheeled transportation.
John Greenfield The Chicagoland Bicycle Federation's bike parking coordinator is also a member of the band Illinois First!--a frequent presence at cycling benefits--and a familiar face in cycling advocacy circles. He coordinates Bike Winters' annual Frozen Snot Century ride in late February, a trek to Milwaukee and back in two days, and the Perimeter Ride in August, a daylong, 100-mile amble. In winter 2004 he and Steve Marsala began an attempt to visit every bike shop within the Chicago city limits: the results are the Chicago Bike Shop Database at chicagobikeshops.info.
Matt the Rat One of those behind Chicago's preeminent freak-bike gang the Rat Patrol, who specialize in repurposing alley trash to build some of the funkiest choppers in Chicago. You'll find him at Critical Mass, at the many freak rides that happen around town, and at rat-patrol.org, which he keeps updated with pictures, event info, and various rat arcana.