its for the bikers.....but surely youd see them and give them a wide bearth anyway, its not like youd come to within inches of their rear wheels, and even if you did surely unless you ram them they wont come off onto your bonnet anyway

the only way i can imagine a biker landing on your bonnet would be if you were going round the outside of him on a corner and he highsided, but whats the chances of that

unless im missing something