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

Critical Mass

10:59 PM PST on December 11, 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

Weekend roundup

Weekend Roundup: San Antonio Celebrates, Mike Swire Saved…

...and Caltrain joke video highlights why the Bay Area needs a network manager

July 11, 2025
Today's Headlines

Headlines, July 11

July 11, 2025
Streetsblog USAPromoted

Talking Headways Podcast: Localities Subsidize the State DOT

July 10, 2025
San Mateo County

Call to Action: Car Brains Try to Remove San Mateo Committee Member for Opposing Widenings

Mike Swire fought highway widening, so asphalt-addicted bullies want him kicked off the San Mateo Transportation Authority Community Advisory Committee

July 10, 2025
Today's Headlines

Headlines, July 10

July 10, 2025
See all posts