Gain Tour De France 2025. Christian prudhomme revealed the route of the 2025 tour de france in crisp detail at the palais des congrès de paris this morning. This is certainly the most challenging flat stage in the tour’s recent history, featuring more than 3,500 metres of vertical gain.

This is the most demanding stage of the 2025 tour, with 5,500 metres of vertical gain. Much of this total will come on the climbs to the col du glandon and.