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San Francisco Critical Mass (Last Friday of the Month)

Every Last Friday
Friday, August 28, 2026 - 6:00 pm to 9:00 pm | Cost: FREE
Embarcadero Plaza | 1 Market Street, San Francisco, CA
San Francisco

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San Francisco Critical Mass (Last Friday of the Month)

SF Critical Mass

Critical Mass is a mass bicycle ride that takes place on the last Friday of each month in San Francisco. Meet and 6pm, ride at 6:30 pm from Embarcadero 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.

Upcoming San Francisco Critical Mass (Last Friday of the Month) Events

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.


Cost: FREE
Categories: *Top Pick*, Bike It, In Person, San Francisco, Walks & Tours
Address: 1 Market Street, San Francisco, CA

Other Events on This Day

Friday, August 28, 2026

All Day   “Pokémon XP”: Pokémon Official Fan Fest & World Championships in SF (Aug. 28-30)  $90*
*Passes start from $90 for adults
4:00 pm   SF’s First “Visitacion Valley” Night Market + Block Party (2026)  FREE
5:00 pm   “Friday Nights at OMCA with Off the Grid” Block Party + DJs (Oakland)  FREE*
*Most outdoor activities and entertainment is free and open to the public from 5-9pm. Regular Museum applies to enter the galleries
7:00 pm   “HellaSecret” Speakeasy Comedy Show & Cocktail Night (Oakland)  FREE*
*Limited free tickets with code FUNCHEAP (donations appreciated). Otherwise use code FUNCHEAP5 for $5 off early bird and general admission tickets
7:00 pm   “Golden Gate Comedy Night” SF’s Most Intimate Comedy Club  FREE*
*Free with RSVP. 21+
7:00 pm   Free Bill Callahan Show: New Album Live (The UC Theatre)  FREE
7:00 pm   San Jose Giants Baseball & Post-Game Fireworks | 2026  FREE*
*Fireworks can be seen for free outside Municipal Stadium.
7:00 pm   “Rush Hour Comedy Night” w/ SFs Best Black & Asian Comedians (The Function)  FREE*
*RSVP Required
8:00 pm   $5 Off Tix: “Hairspray” The Broadway Musical Live in SF (July 10-Sept. 12)  $47*
*Save $5 with code FUNCHEAP
8:00 pm   $5 Off: “The Confessional” SF’s Wild “Sins & Secrets” Improv Comedy Show  $11.94*
*$5 off with secret code FUNCHEAP (normally $17.12) No added ticketing fees. No Drink Minimum
9:00 pm   SF Neo-Futurists “The Infinite Wrench” (30 Plays in 60 Minutes, every Fri & Sat)  $18.60*
*$13 + roll of a die at the door, OR $16 online. Group discounts—bring friends!
9:00 pm   $5 Off: “Your Fucked Up Relationship” Live in SF (Every Friday & Saturday)  $16.37*
*$5 off with secret code FUNCHEAP (normally $21.49) No added ticketing fees. No Drink Minimum
10:15 pm   $5 Off: “The Ritual” Comedy Show in The Mission (SF)  $12.16*
*FUNCHEAP discount code for $5 off
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