June 30, 2023 from 6pm to 10pm – Delay Plaza Downtown CHICAGO CRITICAL MASSFriday, June 30th, 2023 Last Friday of this month, and every month. Leaves after 6 pm. THE monthly gathering of bicyclists making their presence known downtown for 25+ years. Slo… Organized by T.C. O'Rourke | Type: social ride
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