Have you ever sniffed your helmet 2 days after riding it? It’s gonna smell musty and it’s going to have some stank in it. So here’s a quick little tip for you. Pour some water on it right after you ride. This will help neutralize your sweat and prevent all that nasty stuff from smelling. Seriously it works, I’ve been doing this for a while now and it certainly does the trick. Just make sure you get the pads all soaked. Better yet, hose off your helmet once you get home.