Had the same problem when I would put on my detachable windshield on the Fatty. The buffeting got so bad at 75mph I couldn't see. At 6'2" I got all sorts of good advice on how to cut the top of the plexiglass so it is right at yer nose. But mine was already there.Put on the $70 HD deflectors and no more trouble. I only put the windshield on if I'm on a long trip and in the winter.I have not had it on for 2 months and kinda like the look of the chrome deflectors. They remind me of daggers going down the road. Besides it makes the front end even fatter! Help me! I may leave them on year round!