Critical Mass is a monthly, community bike ride to celebrate cycling and to assert cyclists' right to the road. Critical Mass has no leaders, and no central organization, it's an unorganized coincidence. A movement of bicycles in the streets. Show up to the clocktower in downtown Santa Cruz the last Friday of each month at 5pm with your favorite human powered transportation for a celebration of life and bicycles! Bring all of your friends and family for a wonderful ride around Santa Cruz. Critical Mass leaves at 5:30pm. Read more

Audio: Santa Cruz Critical Mass PSA

Photos from 2006 Santa Cruz Critical Mass Bike Rides: February, April and May