The Tour de France is often called the world’s biggest annual sporting event. Each July up to 12 million people line the roadside, while the cumulative TV audience tops 3 billion viewers across 190 countries.
In 2025, 184 riders will compete in teams of eight, racing a punishing 3,500 km route with nearly 50,000 metres of climbing – roughly the height of Mount Everest six times over. Across 21 stages riders tackle time trials, flat sprints and brutal mountain passes through the Alps, Pyrenees and Massif Central.
Professional cyclists possess extraordinary endurance and are capable of generating high power outputs day after day. Yet, despite having far less training and support, in recent years a number of amateur cyclists have begun riding the Tour route just days before the pros. The Tour 21 is one such effort and offers cyclists a chance to follow in the tyre tracks of the elite while raising money for a good cause.
