The Partigiano is an easy way up to the Base Nato: number 102 on the Finale Outdoor Region map, easy to intermediate, rideable both ways.
It is a great alternative to the road for cycling up to the Base Nato.
It has a steady gradient and easy, not very rocky ground. Before you set off, check on the Finale Outdoor Region website that it is open: trails close for maintenance, races or bad weather.