Lifestyle Ten Awesome Critical Mass Instagram Photos By Shaina Tsan | September 28, 2012, 11:52 pm @hot_chip Pages: 1 2 3 4 5 6 7 8 9 10 Tag: Bicyclists, Critical Mass, Instagram, San Francisco From Our Sponsors UPCOMING EVENTS APR 19 Your Fucked Up Relationship at Endgames Improv Theater APR 19 Eric Zammitt | Material Rhythm at Scott Richards Contemporary Art APR 25 Throwback Thursdays at Delirium Bar The Best Events Every Week in Your Inbox Thank you for subscribing!