The crew from Bridgeport's Blue City Bicycles will lead workshops on how to prepare your bike for the city's harsh winters. The workshops takes place at 7:45 p.m. Sept. 25 at the Harold Washington Library and 7 p.m. Sept. 26 at the Richard J. Daley Branch of the Chicago Public Library.

Bikes can be brought to the Bridgeport session but not the Harold Washington workshop.