I get about a year out of a helmet before the sweat and oils build up and make it something nasty that I don't want to put upon my head.
Nothing I've tried will clean them. I even tried pet odor eliminating carpet shampoo with enzymes and that didn't work.
I just ordered a new helmet and I hate to pitch my current one because nothing is wrong with it besides the funk.
I wear doo rags in the summer and stocking caps in the cooler months, but by the end of summer my helmet is not fit to wear in public.
Any ideas on how to keep a helmet clean and fresh? I sweat profusely and I have a very oily scalp.