Gary's Cycle Shop on the 6100 block of north Clark Street has been family owned and operated since 1948 and has a steelr reputation among all who patronize it. It's a super small store front that has served my Edgewater neighborhood since a decade before I was born. The current owner bought it from Gary in the 50's and assumed the name "Gary" himself for the sake of continuity (few people are aware of this). His son has taken the reins in recent years and there's no reason to believe that Gary's won't be around for as long as their are bicyles.
A couple of years ago Gary declined to renew his license as a Schwinn dealer and the company forced him to paint over the iconic "Schwinn" sign at knee-level on the front of the shop.