Skip to Content
Streetsblog San Francisco home
Streetsblog San Francisco home
Log In
Thanks to our advertising sponsor -
Keep bus lanes for buses. Today's stories are presented by HaydenAI
Events

Halloween Critical Mass

12:19 AM PDT on October 17, 2011

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!

Aaron Bialick
Aaron was the editor of Streetsblog San Francisco from January 2012 until October 2015. He joined Streetsblog in 2010 after studying rhetoric and political communication at SF State University and spending a semester in Denmark.

Stay in touch

Sign up for our free newsletter

More from Streetsblog San Francisco

Today's Headlines

Headlines, March 21

March 21, 2025
Streetsblog USABicycling

Video: Ride The Best Bike Tunnel In the World

March 20, 2025
Streetsblog CaliforniaPromoted

Speed Cameras: San Francisco Gets Them First. Whither the Other Six?

March 20, 2025
Streetsblog USAPromoted

Talking Headways Podcast: The Public Works Director for Democrats

March 20, 2025
See all posts