Starting from Ponte di Legno you will go downhill until you reach a junction to go towards Monno (approx. 15 km).
This is where the climbing start, which after a few bends leads to the town of Monno. When you continue from here you will be completely immersed in nature all around you, alternating between short inclined segments and then continue more smoothly.
At the last bends the uphill is less challenging, until you reach Passo Mortirolo which connects with Valtellina.