Next Ride: 5:30pm Friday, December 26
Chicago Critical Mass bike rides start from Daley Plaza, Dearborn & Washington at 5:30 pm on the last Friday of each month, regardless of season or weather. They are free and fun. All you have to do is show up with your bike. Learn more About CCM
Chicago Critical Mass related chatter via MassUp.us:   Want to see a plot of the ridecast?