From SFBC:
Join the San Francisco Bicycle Coalition for a ballyhoo of bikes and beer at the fun-filled day in the park sponsored by our generous friends at the New Belgium Brewing Company. All proceeds from beer and merchandise at Tour de Fat go to the work of the SF Bicycle Coalition and Bay Area Ridge Trail Council. Hundreds of volunteers needed! Event Details.
Late group rides at 11:45 a.m. and 1 p.m.