It's not april fools is it? That is either the stupidest, or the cleverest bit of wind protection for the GS that I've ever seen
Would love to know if it works too, though to look at the thing, and to see it's 100 e-bar, I can't imagine many would give it a go for the hell of it.
I don't think it would work... Its set to sit in clean air ahead of the screen ( possibly in the " bow wave " ) and so would increase turbulance onto the screen making things worse. now if you mounted it on your helmet in front of the visor it might make a difference. A cheaper method might be to go to the seaside and get some sand castle windmills and mount them all round the bike ( like MOD scooter )