Helmets are off secondary protection,,
There is an interview with Ralph on the salt at Bonneville at the 2020 Speedweek event,, this interview starts with vision of Ralph making a pass then returning to his pit aboard his 1000cc machine,,
I note that the tail section on the bike appears to be much larger (higher, SCTA),,
He had made a number of safe high speed runs on the 600cc machine which had a smaller (lower, FIM) tail section,,
Did he underestimate the affect the wind would have on this larger tail ???