20th Anniversary banner

Calendar of Events

We are looking for volunteers to help with these events.

Welcome Center

Opens: Monday, Sept. 24 at 1pm
Closes: Friday Sept. 28 at 5pm
Hours: 1pm-5pm every day
Location: 518 Valencia St. at 16th St. (Map)
Public Transportation: BART: 16th St. Mission :: MUNI: 14, 22, 33, 49 (also J, 12, and 27)


Sunday, Sept. 23
2 pm
Art/Freak Bike Ride. Normal bikes welcome. Waterfront to the Mission. Slow pace. Meet at Hi-Dive, Pier 28, 1:30PM. Ride leaves at 2PM 3-4 hours. Post ride BBQ to follow.

Monday, Sept. 24
Welcome Center Opening Night with Art Exhibition Opening, 518 Valencia (at 16th), FREE

Tuesday, Sept. 25
Critical Mass @ 20 Screening at ATA, 992 Valencia (nr. 21st), $6

Wednesday, Sept. 26
Book release Party and Discussion for SHIFT HAPPENS!: Critical Mass at 20, SF Main Library/Latino-Hispanic Room (downstairs), 100 Larkin St., FREE
After-concert at Great American Music Hall with Seaweed Sway, Aaron Glass and Friends, and Kelly McFarling, 859 O’Farrell St., $14-$16 (get a free raffle ticket if you ride your bike to the event!)

Thursday, Sept. 27

2 pm
Times Up New York City hosts an afternoon of discussion and video from New York’s storied Critical Mass… at Welcome Center, 518 Valencia (at 16th).

7pm-9pm Bike Polo at Jose Coronado Playground (21st and Shotwell)… come and play with locals and visitors alike, share a beer, and head over to the Bash at CELLspace afterwards!

7 pm-1 am
Bikes, Bands, and Brew: The Critical Mass Birthday Party at CELLspace with Grass Widow, Apogee Sound Club, The Rabbles, and Future Twin, 2050 Bryant (betw. 18th and 19th), $10–$20 sliding scale (door proceeds cover costs of event; profits go to the bands… please give generously if you can)

Friday, Sept. 28
Justin Herman Plaza (foot of Market Street)
20th Anniversary Interstellar Critical Mass Ride
(with special Kidical Mass contingent, parents, children, kids of all ages: meet at Justin Herman Plaza near fountain, plan is to ride with the main ride and then peel off to Dolores Park by 7 or a little after (less than an hour of riding)…) ALSO: A Girl and Her Bike  (an FB female cyclists Group) is hosting a women’s ride contingent as apart of the main Critical Mass ride: Girls Roll DEEP

Bikes on Film:  Vintage Bicycle Film Festival, Oddball Films (275 Capp Street), Doors 8/Starts 8:30, $10 (This is a Benefit for Neighbors Developing Divisadero)

Saturday, Sept. 29
5 pm – 8 pm

International Critical Mass Symposium, California Institute of Integral Studies, 1453 Mission (at 11th), Rooms 303 and 304, FREE.

7 pm: Photo Contest!
Enter your photos taken during the San Francisco CM20 Anniversary Week in a contest! Winner to be announced on Saturday September 29th at the International Symposium at the SLIdESHOW SLAM (7pm-8pm)!
Please read the entry rules!

8 pm: Cyclecide Swearhouse, $8-$10 sliding scale. Faultlines & Under Pass Brass are playing, others tba.  Paul da’plumber’s latest creation bigfoot the musical. We have a raffle that’s coming together quite well. Hopefully we’ll have a ride or two going…1660 Jerrold ave. S.F., CA. (near 3rd street south of Islais Creek). More event info

Sunday, Sept. 30
Farewell Bike Ride leaving from 518 Valencia at 1 pm, Party at Ocean Beach, Rock The Bike stage with bands TBA, pedal-powered music, blenders (mojitos!), etc. Bring food and drink to share!


Mon., Sept. 24
11am: San Francisco to San Mateo and back again… join an expert trail rider who will take you on a scenic tour down the bayshore and through some hills (depending on riders’ preferences), finding the nooks and crannies south of San Francisco that even most locals don’t know about! Meet at Welcome Center, 518 Valencia… bring lunch and water!

Tues., Sept. 25
1:30-3:30pm: Chris Carlsson leads a 2-hour “Transit History” tour: Discover lost freeways, ghosts of train routes, and a vivid account of how San Franciscans moved around this peninsula through time. Hear about the violent strikes that shaped public transit, the graft and corruption that conquered the Outside Lands. It’s a social, historical and critical tour through the city’s transportation past and present. Meet at Hayes and Octavia (“Patricia’s Green”), we will leave promptly!

Wed., Sept. 26
12 noon: Susanne Zago (fluent in English and Italian) will lead a ride along the east shore of the SF Bay, from West Oakland BART to the Rosie-the-Riveter monument in Richmond, California. It’s a fantastically scenic, beautiful bayshore ride, with easy return by BART. Meet at West Oakland BART at 11:45 a.m.

12 noon: NOIZ Ride: meet at the  McKinley statue across Baker street from the Dept. of Motor Vehicles on the Panhandle Park.  Bring eatables, drinkables, extra layers to wear,  and your ears.  There will be Three Bands!!! – we will ride around town exploring and stopping very often for some tunes and merriment.  Ride will last several hours and will not be strenuous with probably no hills.  We will probably intersect with the book opening.

Thur., Sept. 27
11 am: Mosquito Abatement Ride: meeting place 518 Valencia (Welcome Center).  Hosted by Dave K & one member of current Pestec Mosquito Abatement crew, a one-hour leisurely ride around some very unusual spots where our local bike-based mosquito abatement team does its work… See for yourself why we have so few mosquitoes in SF!

We are looking for volunteers to help with these events.

DIT (Doing It Together)
Critical Mass is an open idea. There are no leaders or members. Volunteers are appreciated. This is by no means a closed schedule for enjoying the 20th Anniversary. All celebrants are encouraged to create their own happenings in addition to the above activities, especially if it makes everything more fun! And let us know at critmasssf@gmail.com so we can help promote it along with the already-scheduled events.