Ego ole ndị mmeri nke Tour de France gbara? Kachasị ama ama, Lance Armstrong napụrụ aha ya asaa bụ aha eji egwu ọgwụ. Alberto Contador furu efu na 2010 na Floyd Landis na 2006. Ọtụtụ n'ime ndị mmeri ndị ọzọ, bidoro ngwụsị 1990, gụnyere Marco Pantani, Jan Ullrich na Bjarne Riis, abanyekwara na mkparị doping.