Gallery: 20 years of Tour de France team time trials

The team time trials in the Tour de France have undergone quite an evolution over the past 100 editions. In the 1920s, the race instituted a staggered start where teams would begin stages at different times in order to force the team leaders to ride hard every day, but by 1929 these endless days of teams riding together became so boring the discipline vanished from the race, with one exception, until 1954.