42 minutes for the whole Col, that's a VAM of 959, 17m15 for the part Theys -> Col des Ayes for a VAM of 1043. I obviously took the first part of the climb easy leaving it for the second section.

Climb from Brignoud to Laval. The first part of the climb to the hairpin is quite steep then it flattens a bit up to Laval and there is some tree cover in places in the summer.

Classic lunch loop for local riders and used in an autumn hill climb. The road is largely in the shade, great in high summer, very cold in the late autumn and even icy in the winter.

This is a nice quiet little climb to the Col du Lauteret (not THE col du Lauteret) by Prabert in the French Belledonne mountains near to Grenoble.

The col des Ayes from Tencin is  10km covering 704 vertical meters.

From the center of Grenoble this climb is a hard 1000 meters + of vertical. According to the ClimbByBike website it is in the top 500 of alpine climbs for difficulty.