I really like the idea, and it looks very effective. My only concern is that on a bike where you are leaned over (such as the busa) and you are therefore leaning your head back, how much, if any does the mirror part obstruct foreward vision. I say this because I am generally looking out of the very top portion of the eye cutout, due to the angle my head is at when on the busa. When I'm on my BMW(F650), I am sitting straight up and down, so I naturally look out of the center of the eye cutout.