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 their community of riders trains to stay physically and mentally fit. Then visit South Africa — home to the largest individually timed cycle race in the world, three capital cities, white rhinos, and blue wildebeest — and hear the story of its emergence from decades of racial segregation.