In Downtown San Francisco on Market Street, subtly hidden next to the glitzy Westfield Shopping center, 10 floors above the newly painted green bike lanes, are the offices are the San Francisco Bike Coalition. It’s big and lofty-feeling; there’s a wall filled with hooks for bikes. This is the brain trust of the city’s bike movement. The person in charge is SFBC’s executive director, Leah Shahum. And she has a vision:
