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
Op/Ed: Why Transit Advocates Should Be Wary of Proposition D
San Francisco's transit system is undergoing a transformation, but Proposition D threatens to derail this progress by giving the mayor unchecked control over the SFMTA.