San Francisco Critical Mass 30th Anniversary Bike Ride

Submitted by the Event Organizer

San Francisco Critical Mass

Critical Mass is a mass bicycle ride that takes place on the last Friday of each month in San Francisco starting at 5:30 pm at Justin Herman Plaza (foot of Market Street) and in cities around the world. Everyone is invited. No one is in charge. Bring your bike.

Please Note: Critical Mass tends to practice extreme bike power by taking to the streets and riding in the car lanes causing endless annoyance to motorists.

In San Francisco especially, this event can get HUGE. Consider this is fair warning to stay away from driving in the downtown SF area on the last Friday of every month.

Friday, September 30, 2022
San Francisco Critical Mass

September 2022 marks 30 years of Critical Mass in San Francisco, and to celebrate they’re hosting a big anniversary ride. Meet up at 5:30 pm in Embarcadero Plaza, and roll out at 6:30 pm.

Critical Mass is a bike ride, a celebration, and protest that occurs on the last Friday of each month, in cities across the world. Bring your bike or other wheels and roll along. All are invited and no one’s in charge. We should note that these rides can get huge, causing massive disruption to traffic, so avoid driving in downtown San Francisco when these rides take place. 

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— SF Critical Mass (@CriticalMassSF) August 23, 2022

Disclaimer: Please double check event information with the event organizer as events can be canceled, details can change after they are added to our calendar, and errors do occur.