The Campus Bike Center is located in Champaign, Illinois at the southwest corner of the Natural Resources Garage on the University of Illinois campus. The garage is between Sixth St. and Goodwin Ave. on Pennsylvania Ave; it's between the Stock Pavilion and the Law Building, and it's directly south of the Natural Resources Building.
Campus Bike Center looks like this when you're heading east on Pennsylvania Ave.:
Another map of the location can be found here.
Memberships are reciprocal between Bike Project's Downtown Urbana Shop and the Campus Bike Center.