Day one in the book includes a little action like this in an Italian tunnel. It’s very much like these guys, only without the helmet, in silk shorts, and wearing a 35 lb. backpack. I’m also closely followed by two double-decker tour busses.
I don’t suppose these guys need ski poles to go back up the hill once they’re at the bottom — they appear to be much more skilled and have a better sag team than I (I had none). Still, 90 kph is really moving when it’s just you and your feet and the street. Rock on Fabien!