Strava visualises the key climbs of stage 19 of the Giro d'Italia (video)

Friday's stage 19 of the Giro d'Italia will take place over just 162km, but features two long, tough climbs to help decide the overall classification as the race briefly enters France.

While the first categorised climb, the Colle Dell'Angello, is listed on Strava as 20.7km long, in reality the route gradually inclines for more than 50km before the peloton finally reach the top after 106.4km of racing.

The climb will see riders ascend 1,441m at a gradient of 7% to soften up the bunch before the summit finish across the French border.

>>> Six of the toughest climbs in the final week of the Giro d’Italia

But, even with riders keeping some in reserve for the final climb of the day, Alberto Marengo's KOM time of 1:17.56 may be under threat.

After a nice, long descent that will allow the GC men to recover some of their strength, the race heads uphill again with the shorter but equally steep climb to Risoul.

Clocking in at 12.7km at an average gradient of 7%, the climb will see the race favourites battle to gain precious seconds ahead of a final showdown on Saturday's penultimate stage.

With the attacks likely to come thick and fast, Peter Pouly's KOM time of 35:37 does not look long for this world.