Pedaling Through Pain on the Tour De France Pain is a given in Tour de France racing. Cyclists are accustomed to burning leg muscles, cramps and extreme cardiovascular fatigue. American rider Tyler Hamilton is dealing with all that, plus a broken collarbone. He was injured in a mass pileup in the beginning of the tour, but he's still in the race five days later, to the amazement of cycling fans. NPR's Tom Goldman reports.