You can find most of the answers to your questions about it from this wonderful website: Time'sUp.org.
At the end of September, I had a chance to participate in Toronto's Critical Mass event. If you missed my article about Critical Mass, then you can read it in Estonian here. As exciting as participating in the group ride was photographing it for this gallery. I didn't use my usual DSLR (digital single-lens reflex camera), but a smaller compact Canon camera, which allowed me to be more free and also safer while cycling.
Having a heavy-bodied digital camera around your neck while cycling is not good for the camera, the safety of the cyclist, or their neck. Though the gallery may lack a bit in quality, it still gives a wonderful overview of Critical Mass as it happens in Toronto.
…when we were exiting Garrison Common, a runner shouted out to his friend: “Oh, look! A Christmas bike!”
Since the ride took place near sunset, the most important and fun thing was to decorate your bike with as many lights as possible. This was for me truly one of the most exciting parts of the ride. I had three sets of indoor LED light chains, which I added to my bike's frame, basket, and handlebar. I think I did a good job, as when we were exiting Garrison Common, a runner shouted out to his friend: “Oh, look! A Christmas bike!”
Take a look at the gallery below to show photos of the whole ride. If you are interested in experiencing the power of Critical Mass yourself, then please note that you can do it sooner than you think. On this Friday, 29th of October, you have a chance to do that! Please check Critical Mass event page for more information.