Sierra de Ayllón, Puerto del Infante y El Muyo — circular desde Ayllón

No, this is a challenging mountain bike route categorized as 'difficult'. It demands very good fitness and advanced riding skills, with technical sections rated S3-S6. Some parts may even require you to dismount and push your bike.

The route features varied terrain typical of the Iberian mountains, known for its 'dusty and loose' conditions. Be prepared for 'fierce slate rock and super technical steep features' throughout the 64.3 km loop, which includes a substantial 960 meters of elevation gain.

The estimated duration for this challenging mountain bike loop is approximately 5 hours and 40 minutes. However, this can vary significantly based on your fitness level, technical skill, and how often you stop to enjoy the views.

The trail offers splendid views, especially around the Collado del Puerto de los Infantes. You'll also pass through the settlement of El Muyo. The region is known for its expansive vistas of wild Iberian mountains, blue skies, and the possibility of seeing wandering cattle and vultures.

The Sierra de Ayllón region is considered to offer some of the best autumn riding in Europe, suggesting that fall is an excellent time to experience this route. Always check local weather conditions before heading out.

The trail is a circular route starting from Ayllón. While specific parking details for the trailhead aren't provided, you would typically look for parking options within or on the outskirts of Ayllón town to begin your ride.

Information regarding dog-friendliness for this specific trail is not available. When mountain biking with dogs, it's generally advisable to keep them on a leash, especially in areas with wildlife or livestock, and to ensure they have the fitness for such a demanding route.

There is no information indicating that permits or entrance fees are required to ride this mountain bike route. However, it's always good practice to respect local regulations and private property.

Given its 'difficult' rating and length (64.3 km), you should bring plenty of water, high-energy snacks, a repair kit for your bike, appropriate safety gear (helmet, gloves), and navigation tools. Due to technical sections, consider knee and elbow pads.

Ayllón is a town, so it is highly likely you will find cafes, pubs, and restaurants there to refuel before or after your ride. It's a good idea to check opening hours, especially if you plan an early start or late finish.

Yes, the route briefly intersects with several official paths, including sections of the Ruta del Sureste, Camino Natural de la Cañada Real Soriana Occidental, Camino a Martín Muñoz, Calle la Campana, Camino El Monte, Camino de Arriba al Molino, Camino de Tinadas, Carretera vieja, Camino Rural, and Calle las Peñas.