Originally Posted by DR-DRZ
Good to see your taking this whistling issue seriously
I've got an Arai XD myself, but it doesn't (or won't
I've had helmets that have made odd wind noises and such, but I just worked it out with a bit of trial and error. It's a fair question from the OP, to which I don't have a definitive answer, so I'll just ask silly questions instead. Am I normal?