The mountain bike stage between Villamanín and Puente de Fierros is a demanding and spectacular route, covering a distance of approximately 32.5 kilometres with an elevation gain of 677 metres, making it a high-difficulty stage. The route combines dirt tracks and minor roads, offering a varied experience with steady climbs and fast descents through mountain landscapes.

After leaving Villamanín, the route begins along a minor road before reaching dirt tracks that wind through meadows and forests. As you progress, there are sustained climbs that, although not highly technical, require good pace and endurance.

The second half of the stage is a gradual and entertaining descent, with trails and tracks that allow you to ride fast without excessive technical difficulties. Finally, the arrival at Puente de Fierros marks the end of a demanding yet rewarding day, ideal for mountain bike enthusiasts looking for a challenging journey in an impressive natural setting.

The mountain bike route between Puente de Fierros and Villamanín is demanding and scenic, covering a distance of approximately 32.5 kilometres with an elevation gain of 1,355 metres, which means it is a difficult stage. It combines dirt tracks and minor roads, featuring long climbs that will test your endurance, as well as more rolling sections to enjoy the mountain scenery.

After leaving Puente de los Fierros, the route begins with a gradual climb that gets harder later on. Along the way, good dirt tracks predominate, with some minor road sections that make it easy to make progress. The elevation gain makes it a physically demanding day, although the panoramic views and natural surroundings are worth the effort. Please note that some downhill slopes may require special attention, such as the one at kilometre 13.

The route gets slightly gentler towards the end, allowing for smooth pedalling before reaching Villamanín, where the stage finishes. It is an ideal stage for experienced riders looking for an intense day in the mountains, combining long climbs with spectacular scenery and the essence of mountain bike riding.