And Rapid Transit Cycleshop, a 21 year veteran of the Chicago bike scene and good place for recumbents and folding bikes but not cargo bikes, is closing its doors. You still have a couple of weeks, probably, to get a deal on their inventory or get a last minute repair, but only at their North Avenue and Wolcott branch. The one on Halsted and roughly Maxwell is already closed. Last chance for Brompton or tadpole parts!
Comrade Cycles still stocks Brompton, and you can find parts they might not have from Harris Cyclery in Newton, MA. Check out the Pere/ItChair, still only (as far as we can tell) available from Milian Parts, the manufacturer, in Catalonia.