MASS 
 Chicago Critical Mass - Fri 1/27 5:45p
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Chicago Critical Mass
Fri Jan 27th 5:45p

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.
ChicagoCriticalMass.org
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CCM RT @DNAinfoCHI: Meet the adorable dogs repping Chicago in the Puppy Bowl https://t.co/0s748kqUk4
CCM 2017 looking good
CCM RT @BikeWalkLP: Woot! Chicago's Lakefront Trail is the only urban trail on this list of most beautiful bike trails. #...
CCM Amen
CCM F-ing sweet
CCM RT @EmrgencyKittens: to understand the pillow, one must become the pillow
CCM RT @Snowgoggles: The #Chicago Winter #Bike Swap! Come shop for bikey stuff! Have a #beer! I'll be working the door! #...
CCM RT @margeincharge: Hi, this is called “a bus”
CCM RT @backonmybike: 5 yr old cycled 10 miles in freezing conditions; it's not age or weather that stops kids cycling, i...
CCM Nothing wrong with that 🙌
CCM Damn that's crazy #bikechi
CCM RT @HughesBrews: Lakeview "Grandma" Takes 10 Millionth @DivvyBikes Trip! Sorry @pistola79, it wasn't you... #bikechi …
CCM RT @BikeCHInorth: #BikeCHI: interested in having cool businesses & great experiences around the #northbranchtrail? Jo...
CCM @jennik84 yes/no check the tube size printed on it some have a range. Say 700x23/28 but if going a lot small always g...
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