MASS 
 "Pilsen Protest Party" ride. - Fri 3/25/11 5:45p
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 40F SW7-12 Partly Cloudy 34i
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Chicago Critical Mass
"Pilsen Protest Party" ride.
Fri Mar 25th 2011 5:45p

Critical Mass is a very large group bike event, gathering in Chicago the last Friday of every month for more than a decade. Leaves Daley Plaza downtown around 6pm.
ChicagoCriticalMass.org
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