Miguel Indurain

Miguel Indurain's five consecutive Tour de France victories from 1991 to 1995 remain unmatched by any rider without a doping-related asterisk, a feat of sustained endurance still considered one of cycling's greatest achievements. The Navarrese champion completed rare Giro d'Italia-Tour de France doubles in both 1992 and 1993, winning the Giro each of those years before going on to take the Tour, and set the world hour record in 1994 at 53.040 kilometers.