0 Talk Denver, Colorado Edit History Home > List of rides > United States > Denver, Colorado Look up on Google / Wikipedia Would like to ride. Is critical mass still in effect in Denver? I am wondering this as well. Most of the info I can find dates back to 2007-ish. Anyone know? Read more New York had big critical mass rides. Cops are nasty though, and arrested a lot of people.... New York City One of the first Critical Mass rides in the U.S., Austin's monthly human-powered celebration of... Austin, TX Syracuse Critical Mass meets the last Friday of every month at Everson Plaza downtown at 4:30pm.... Syracuse, New York Related Categories Categories: United States | Ride locations | Colorado Add category