includes bikes of all types and people are all ages. many came in creative costumes. critical mass has had its critics over the years. some of my friends and i would go in at night and paint in fake lanes. tonight some drivers turned off their engines, patiently waiting up to 20 minutes in some spots. we were hoping to pass it open. after two decades a truce that many hope will continue. it s been changing the ways city operate and people move. when critical mass started back in 2002, there were hardly any bicycle spaces or bike lanes, now san francisco has more than 65 miles of bike lanes lanes. ktvu camera men rode along with the critical mass riders tonight broadcasting live pictures. the riders weaved their way through the streets of downtown san francisco to the front of city hall. ben tells us he saw thousands of bike riders taking part, including a lot of kids. more details now. on any given day there are 75,000 bikes in san francisco. bike riders now m
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