(cross-posting from http://chicagofunnews.com/event/su6v0a29qd3)
** Critical Mass (since 1997). Last Fridays All ages Free 5:45p.
THE monthly gathering of bicyclists making their presence known downtown. Unplanned route gently winds a dozen miles or more. Thousands attend in good weather. Includes music, hipsters, athletes, show bikes, so much more. Skaters welcome.
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