Mine depends on what sort of riding conditions I'm in.
If I keep moving and am doing at least 30mph+ then mine sits around 78-80, even if I'm doing 100mph+ it sticks around that temp.
If I'm stop-starting, waiting at lights or just in general slow traffic then the fans come on at 100 degrees which tends to happen after about 15-20mins
In all honesty I can count one 1 hand the amount of times the fan has kicked in on mine in 4 years of ownership. I actually have to try and get it to kock in most of the time just to check it's still working haha