After 30 years and 16,350 miles, this Sunday marks the last California AIDS Lifecycle Ride from San Francisco to Los Angeles. It's been called "life changing" with over 300 million dollars raised in the last 30 years. But it's become too expensive to put on and not enough people are riding in a fundraiser that's become an historic staple in the Bay Area.

In this multipart series, KCBS reporter Holly Quan reports on the legacy of the AIDS/LIFECYCLE Ride and the community surrounding it.