From SF Bike Party :
Jedis, Droids, Wookies, Ewoks. The time is now. The Empire has placed an intergalactic ban on parties and we must rise up in the ultimate act of bicycle rebellion. From Alderaan to Yavin, Dagobah to Tatooine, our way of life is threatened. The Dark Lord once again controls the galaxy. But the Jedi Knights of the San Francisco System can now channel the force into a pedal powered revolution! Come ride with us in a 2 wheeled assault against the Death Car. And May the 4th be with you.
Meet at Dolores Park @ 7:30 pm, May 4th. We roll into battle at 8:00! Route posted soon!