This col is utterly suitable for race bikers:
nature is splendid and varied,
there is not much motorised traffic on the generally narrow road,
road conditions are reasonable.
Nowhere the slope exceeds 7%.
My profile starts where the road to the Col d'Allos splits from the route to the Col de la Cayolle,
~2 km from Barcelonnette.
The first ~20 km are easy, with the slope only incidentally exceeding 5%.
Sonn after the beginning the road enters the Gorges du Bachelard and bends to the east.
Then the valley widens and at Bayasse (1783 m) the climb becomes somewhat more serious.
I found this the most beautiful part of the tour,
due to the open forest consisting mainly of larches and the views, to the west, on Mount Pelat (3051 m).
The final part of the climb is rather barren.