Used my new helmet fo the frst time today. It's MUCH louder than I thought it would be. Lots of "roar" at speeds as low as 100kph and a hell of a whistle when I turn my had for a shoulder check. Not amused, given the price. I've checked the visor anthat sems to be properly attached. On an aside - what do people use to clean their visors with (get rid of insects dust etc) ?