The first 45km runs along reletively flat ground, and are followed by three typical pre-Alpine climbs, marked by narrow roadways, high gradients and endless turns, both while climbing and while descending.
After a flat drag including a passage over the finish line, the route heads towards the two final climbs in Porzùs and Valle, with a very winding and undulating profile, and high uphill gradients.
The road narrows at point while crossing urban areas. The route features some technical descents, especially when climbing down form Passo San Martino at km 67.
The last 5km are deceptive: seemingly flat and yet actually running downhill all the way to Cividale del Friuli. The route features a few twists and turns over the last kilometre; the home straight (approx 400m long) is on a 7m wide asphalt road.
Giro d'Italia Stage 13 (Supplied) Source: Supplied
Race leader Bob Jungels (Etixx-QuickStep) may be the meat in the Astana and Movistar sandwich, with both teams likely to make the stage a hard one designed to separate the contenders from pretenders.
His hope will be that a breakaway again steals the show from the general classification contenders like Vincenzo Nibali (Astana), Movistar pair Alejandro Valverde and Andrey Amador and Esteban Chaves (Orica-GreenEdge).
“I haven’t done any of the climbs of the Giro yet so it will be a surprise for me tomorrow and the next few days," Jungels said.
"But I’m ready to fight for the jersey. I’ve showed my form is good. Maybe it’s up to the favourites to say if they see me as a GC contender. For me it’s the first time to be in this situation.
