I just bought the new 509 helmet and sinister goggles. I love them but i sweat alot and the goggles fog up and it drives me crazy. Does this fan work as advertised or should i just buy another set of goggles as they are almost the same price.
The key with not fogging up is having a breath box that fits snug to your face without leaks.... as the other peeps said, the fan is useless