Saturday, Sept. 13, 10 a.m.–5 p.m.
Lindley Meadow, Golden Gate Park
This ballyhoo of beer, bikes and bemusement starts with a parade followed by a fun bike cruise in your most fabulous bike costume, then an all-day live music jamboree, tasty eats and more. Proceeds benefit S.F. Bike Coalition and Bay Area Ridge Trail Council. Free (ride only), 415-431-2453, newbelgium.com