San Diego is a great city for biking. If you live near campus, biking is a great way to get here.
The BikeShop is a good resource.
Pedal Club
A terrific program is available through the Parking Office office called the PedalClub. If you bike to work every day, and have registered your bike with the campus police (This costs $6), you can obtain a free 10-day-per-quarter parking permit (Worth $40 or more) from the Rideshare Operations office. This permit allows you to park your car on campus in green spots 10 days per quarter. It also provides a 10% discount at the BikeShop.