Take a look at the online SF Bike Map and Walking Guid e . Pizza Power's bay area bicycling has independent descriptions of bay area bike rides, plenty of good advice, some excellent Web links, and more. Bike To Work is an attractive site that has a lot of good general material on bike commuting. It is a good site for novice bicyclists. Read the archives of the discussion.
Bicyclists use the west or east sidewalk, depending upon the time of day.
Just follow the instructions posted just before the entrance to the east sidewalk. Click here to request a Bike Buddy, or volunteer to help. Other CVC sections of interest to bicyclists. All public and private garages in SF over 10 spaces are required to provide bicycle parking. Here's a list of garages in compliance.