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Critical Mass San Francisco

PHOTOS: Critical Mass Takes Over City For 20th Anniversary

Robin Wilkey | Posted 09.29.2012 | San Francisco

Thousands of cyclists descended upon San Francisco on Friday for the 20th anniversary of Critical Mass--a global biking event. Riders wore costume...

PHOTOS: 20 Years Of Critical Mass!

Robin Wilkey | Posted 09.25.2012 | San Francisco

Twenty years ago, on a Friday night in late September, 50 cyclists showed up on Market Street. Organized only by fliers and word-of-mouth, the leaderl...