On July 4th each year, packs of super-fast bicycles speed through downtown streets in the Davis Criterium. Hear how road racing got its start in 1868 in Paris to become a global sport that draws millions of spectators around the world. Heidi Verbeeck and Ray Spore, race team directors for the Davis Bike Club, tell us how the race team riders train to stay physically and mentally fit. Listen to the the interview with KDRT