1) Cyclists warm-up before beginning the 80-mile AIDS/LifeCycle Training Ride - "Day on the Ride" on Main Street in Santa Monica on Saturday, April 21, 2007. The training is in preparation for the upcoming seven day bike ride that will travel 545 miles through California from San Francisco to Los Angeles and will take place June 3-9, 2007. AIDS/LifeCycle is CO-produced by the San Francisco AIDS Foundation and the L.A. Gay & Lesbian Center and is designed to advance their shared interests to end the pandemic and human suffering caused by AIDS. 2)  Hundreds of cyclists peddle along Via Marina during the 80-mile AIDS/LifeCycle Training Ride - "Day on the Ride" on Saturday.