Lance Armstrong warms up for the swimming leg of the 2011 Xterra World Championship triathlon in Kapalua, Hawaii (before he was banned from most competitions). This weekend, he'll swim in a Texas meet for masters swimmers. Hugh Gentry /Reuters /Landov hide caption

itoggle caption Hugh Gentry /Reuters /Landov

Washington State Rep. Ed Orcutt has apologized for saying "the act of riding a bike results in greater emissions of carbon dioxide from the rider," after an email with a bike shop owner sparked criticism. Here, a cyclist rides in Seattle last year. Elaine Thompson/AP hide caption

itoggle caption Elaine Thompson/AP

Lance Armstrong in 2010. Timothy A. Clary /AFP/Getty Images hide caption

itoggle caption Timothy A. Clary /AFP/Getty Images

South African cyclist Burry Stander, seen here riding in the cross-country mountain bike race at the London Olympics, was killed during a training ride Thursday in South Africa. Fabrice Coffrini/AFP/Getty Images hide caption

itoggle caption Fabrice Coffrini/AFP/Getty Images

Lance Armstrong, in the yellow leader's jersey, during the 2002 Tour de France. Now, there's no winner of that race or the six others in which he finished first. Mike Powell/Getty Images hide caption

itoggle caption Mike Powell/Getty Images

Lance Armstrong, in the leader's yellow jersey, during the 2001 Tour de France. Patrick Kovarik /AFP/Getty Images hide caption

itoggle caption Patrick Kovarik /AFP/Getty Images

Lance Armstrong, wearing the yellow jersey that identifies the leader in the Tour de France, during the race in 2003. He won that year and six other times. Joel Saget /AFP/Getty Images hide caption

itoggle caption Joel Saget /AFP/Getty Images

Lance Armstrong grimaces prior to the start of the third stage of the Tour de France cycling race in Wanze, Belgium, on July 6, 2010. Armstrong said Thursday he is finished fighting charges from the U.S. Anti-Doping Agency that he used performance-enhancing drugs during his unprecedented cycling career. Christophe Ena/AP hide caption

itoggle caption Christophe Ena/AP