The visor on a Dual Sport Helmet can create a lot of lift on a street bike.
Works great on my KLR, 65 MPH and below. Not so great on the C14 at highway speeds. Not what you want to wear when it's really windy on the KLR either
I've been looking at those helmets too and thinking about getting one for summer use.
So who is that anyway? I saw it on FaceBook.