The sharp rating fails for me because it rates some open face helmets higher than some quality full face ones. How can it be five stars if someone could punch you and kill you? They should use my urbanstar rating system. 0 stars = You forgot to put a helmet on 1 stars = Offers some protection but is not a helmet (bowl, Saucepan, salad spinner etc) 2 stars = Is a helmet but offers minimal protection (WWII helmets, Builders helmets, fake fighter pilot helmets etc) 3 stars = Any helmet that when worn by a test monkey. Protected said monkey from harm after being hit at 30mph with a kerbstone fired to the head from the front, back and sides.. 4 stars = Any helmet that passes the above test and also allows the monkey to survive having its head driven over by a BMW 3 series. 5 stars = Passes the above tests and is worn by any class of pro Motorcycle racer in any class. The helmet makers would have to pay into a pot to have a helmet rated (£87.94) and the money would be used to breed more test monkeys. I think the result would be a safer bike riding public and a boom in monkey breeding and monkey related industries like monkey funerals and monkey wheelchairs. Monkeys are shit. We evolved, why didnt they? Lazy, furry, f**k sticks.