Quebrantahuesos is the name of one of the most important tourist cycling competition in the world. During the two days Sabinanigo multiplies its population by three. Bikers all around the world come to participate in this amazing contest. More or less 20.000 bikers every year, divided in two competitions: the long one: Quebrantahuesos (about 200 kilometers) and Treparriscos (about 90 kilometers)