A typical time trial stretch from St Genis to Divonne via Gex. The first 15 km are about 1% uphill; the last 2-3 kms are downhill, and you might speed up to >60 km/hr. A good video to go full-out. Enjoy!
See my other videos and playlists at https://dashboard.kinomap.com/en/users/129864/playlists