The Passo Pordoi is via Arabba a real pleasure to climb, the gradient is almost constant and the well laid out hairpins, in total 33 from this side, take you smoothly up the mountain.
You got steady average gradient of 6,9%, actually if you have a look at the profile, you can draw a straight line
On the first 3.5km of the Pordoi, you just have 4 series of hairpins with a few long straights in between. After the first part, you got 22 hairpins in 4,5km, that is an average of 1 hairpin every 200 meters. In the last kilometer up to the top of the Pordoi, it’s the wind which decide your pace. If you have bad luck, it is against headwind.
Via Canazei, the climb is gentle, touching a 9% gradient just once. The first hairpins, on a total of 27, starts right from the beginning. The average gradient for this 12km long climb is 6.5%. When you notice that there aren’t any trees anymore, you’ll be just 2.5 km away from the top of the Pordoi.