The hardest route of the Bike Festival Marathon is the Ronda Extrema: 83 km, 3.434 meters of difference in height and the overcome of the highest point at an altitude of 1.433 in Prà dei Muci
The hardest route of the Bike Festival Marathon is the Ronda Extrema: 83 km, 3.434 meters of difference in height and the overcome of the highest point at an altitude of 1.433 in Prà dei Muci