Yea it's not all "that" so to speak, original screen makes it hell,
I literally put my chin in the tank at 120 and even at 125 my helmet was still battering away with the lack of coverage to push the wind over the helmet,
In doing this, u are now looking tru the screen, which is lightly scratched but still blurs vision even more, also now u can't see Ur mirrors,
Also Ur arms are now in a position Ur not accustomed too and have to make adjustments to suit on the spot,
And stopping distance at that isn't worth thinking about either,
Plus what about bearing failure at that speed? Chain breaking??? Tyre stripping due to surface?
List goes on, just something to think about if you ever try it......... On a enclosed track of course...