This is a medium mountain stage, running almost entirely through inland Sardinia. The stage starts from Olbia (two stages in 1991) and first comes a rolling section across the district of Nuoro, with three long climbs: Bitti and Orune (non-categorised climb), Nuoro (a steeper, categorised climb) and Passo di Genna Silana (cat. climb). Past Genna Silana comes a long, fast-running descent (over 20 km, quite bumpy at points) on wide, well-surfaced roads. The final 10 km are flat with arrival in Tortolì (town stage for the first time).
After leaving the ss. 125 and entering the centre of Girasole, the route cuts across the industrial area of Tortolì, on wide roads alternating with series of roundabouts. The roadway narrows 2 km before the finish, crosses the railway track and turns right straight away, into the home straight (1,800 m long), on 7.5-m wide asphalt road.