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Group Description

Critical Mass Ann Arbor

Dedicated to spreading the world about the Ann Arbor Critical Mass monthly ride.

In the spirit of Critical Mass's non-structure/non-hierarchy, anyone can start a discussion topic or post their CM photos to this Flickr group.

CMAA group membership requires no invitation and is open to the public. Note: The Flickr service, owned by Yahoo, is free (as in advertising). If you want an advertising-free experience of Flickr, you must pay the $2.50/month for the pro account.


What is Critical Mass?

Critical Mass is a global event during which bicyclists, skateboarders, roller bladers, roller skaters and other self-propelled people take to the streets en masse. It is typically held on the last Friday of every month in cities around the world.

Critical Mass is not led and as a group has no goals other than to meet once every month and enjoy the security and companionship of riding, rolling and travelling through the city together.

The general philosophy is expressed by the widely used slogan: "We aren't blocking traffic; we are traffic."

Critical Mass rides are self-organized and independent - often only the meeting place, date and time are fixed. In some cities, the route, finishing point, or attractions along the way may be planned ahead.

There is often a backdrop of non-violent protest: through doing it actively and in full public view, participants demonstrate the advantages of cycling in a city, and show how the city may be failing cyclists in terms of facilities and safety.


-Taken From the Wikipedia entry for "Critical Mass"

Additional Info

  • Accepted content types: Photos, Videos, Images, Art, Screenshots
  • Accepted safety levels: Safe
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