MASS 
 Full Moon - Fri 9/24/1999 6p
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Chicago Critical Mass
Full Moon
Fri Sep 24th 1999 6p

Critical Mass is a very large group bike event, gathering in Chicago the last Friday of every month for 15+ years. Leaves Daley Plaza downtown (50 W Washington St) around 6pm.
Contact: David Z.
ChicagoCriticalMass.org
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1/28 10:41a Hundreds of winter cyclists descended upon Daley Plaza Friday morning to celebrate Winter Bike to Work ...
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CCM RT @MailOnline: Snail mucus fights acne, apparently via @femail http://t.co/z7g7O5FYBC
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CCM RT @CuteEmergency: Me right now
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CCM RT @leecrandell: ♥︎ Check out the Chicago rush hour bike lane photo on the final page of this @ChicagoDOT 2014 re...
CCM RT @WanderBikes: A great discussion on Reddit for biking tips in Chicago #bikechi
CCM RT @craignewman: Ore. Senate bill calls on cyclists to register, pay fee via @KGWNews #bikechi
CCM RT @velonews: Ride on Chicago confirmed for June 2015. @timjohnsoncx will lead a group of cyclists from Minneapolis t...
CCM These 4 Things Happen Before a Heart Attack.
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CCM The Next Wave of Bike-Share Innovations May Focus on Equity
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