Loop Route: Bormio - Mazzo di Valtellina - Mortirolo Pass - Ponte di Legno - Gavia Pass - Bormio

A highly prestigious route that combines two climbs that have gone down in the history of cycling and the Giro d’Italia: the Mortirolo Pass and the Gavia Pass.

From Bormio, the route descends through the Valtellina valley toward Tirano until reaching Mazzo di Valtellina, at an elevation of about 552 meters. From here begins one of cycling’s most famous and feared climbs: the Mortirolo, also known as the “Pirate’s Climb” due to Marco Pantani’s legendary feats.

The road climbs with steep gradients and particularly grueling sections until it reaches the Mortirolo Pass at 1,852 meters. The maximum gradient along the route reaches 19%, making this first climb extremely selective.

From the pass, the route descends on the opposite side toward Monno, then continues toward Edolo and climbs back up the valley to Ponte di Legno, at an elevation of 1,258 meters.

Here begins the second major climb of the day: the ascent to the Gavia Pass. The road gradually gains elevation through an increasingly alpine landscape, reaching 2,652 meters at the pass—the highest point of the entire route.

From Gavia, a long descent begins toward Santa Caterina Valfurva and then, through the Valfurva valley, all the way to Bormio.

With a distance of 115 km and approximately 2,694 meters of elevation gain, this tour is intended for experienced and well-prepared cyclists, yet it offers some of the most authentic thrills of Alpine cycling.