I had a friend who used to ride on the NurBurgRing in Berlin. It's an occasional racing oval that is usually a four-lane highway.
This friend got his bike up to about 120MPH before he realized that his raised arms and field jacket had created wings...the front of the bike started to come up and he had to fold in his arms really quickly!
LOL!! Yeah - when you start getting up in those kinda speeds fun things can start to happen.