Via Laiolo is the gravel road climbing from Spotorno to Trevo, on the slopes of Monte Mao: number 297 on the Finale Outdoor Region map, intermediate cross-country, rideable both ways.
The first part is very steep uphill: still rideable for fit riders and ideal on an e-bike.
The surface is compact but slippery because of the gravel. Downhill it is very fast but without difficulties. Before you set off, check on the Finale Outdoor Region website that it is open: trails close for maintenance, races or bad weather.