This is a mountain stage with long downhill or flat drags in between the climbs. After the Sella Chianzutan categorised climb (on relatively wide and well-paved roads), a long descent leads all the way to Tolmezzo. The route then clears the 2nd category Forcella di Monte Rest on narrowed roadway (with several hairpins along the climb and the descent, at times inside a tunnel). The following descent then leads to the Pala Barzana KOM summit, with some intricate sectors while travelling uphill across the urban areas. The route then takes a technical descent, followed by a perfectly-surfaced and well-lit tunnel of over 4 km, and eventually levels out until Aviano, where the final climb begins.
The final 15 km run entirely uphill. The first 10 kilometres go up at very steep gradients – around 9% and topping out at 14%. With 10.9 km to go, the road levels out and even descends a little, then climbs up again (passing through an avalanche gallery) with milder gradients (max. 8%). The final kilometre is quite sinuous, still climbing slightly. The home stretch (100 m in length) sits on a wide, mild bend, on 7.5 m wide asphalt road, and has a 1.5% uphill gradient.