The Classic way and TDF route is from Bédoin, this is steep, mainly 10-12% all the way and will take at least 1:15 and for most around 2hrs+
at least 1:15 :lol: I think the 2hrs+ bit is a more useful guide
the top of the strava leaderboard is ~1hr (a mix of pros and local hotshots in TT mode), the top of the STW club on strava was ~1:30. I targeted dipping under 2hrs.
given the right gears, enough time, and some MTFU you’ll be fine