Why is every single Arai shell weighed and documented 3 times?
Why is every single Arai shell tested twice?
Why does every single Arai craftsman inspect every part of every helmet that is handled?
Why do Arai craftsmen sign their helmets along the line?
Why do you think?
WHY are Arai helmets so expensive?
You get what you pay for.
(Or did you think that only applied to the other things you buy?)