Although not quite yet rivaling the Big 3, Detroit has now a robust, sustainable and expanding manufacturing, sales and service bicycling industry. An inspiring story [2] for cyclist and entrepreneurs don’t want to miss.
Links:
[1] http://www.library.northwestern.edu/libraries-collections/evanston-campus/transportation-library
[2] http://www.modeldmedia.com/features/bicycleecon1012.aspx
[3] http://www.library.northwestern.edu/related-pages/bicycle-manufacturing