Why do motocross helmets use goggles and a visor?
The spinning rear wheels of dirt bikes throw dirt, mud and rocks ten feet up in the air. When it falls to earth, it’s going to hit riders in the head that are following behind. Tilting your helmet down a couple of degrees, is enough for the visor to deflect most of that debris. Motocross is the most physically demanding sport. A rider needs all the air flow he can get to keep his head cool. That’s why they use open faced helmets, instead of full faced enclosed helmets. With an open face helmet, of course you’re going to need some eye protection. But that’s just one function of goggles. They’re outlined with foam and pressed firmly against your face with an elastic strap, to make a water tight seal. Along with protecting your eyes from flying rocks, dirt, mud and water, they keep sweat from dripping into your eyes (like a sweat band).
