Critical Mass is a mass bicycle ride that takes place on the last Friday of each month in cities around the world. Everyone is invited! No one is in charge! Bring your bike!
Events
Critical Mass
Stay in touch
Sign up for our free newsletter
More from Streetsblog San Francisco
Commentary: Police Need to Stop Exonerating Drivers in Fatal Crashes
The hypocrisy from the San Francisco Police during these last two fatal crashes is astounding