As the weather turns cold and we have more wet days, the bane of all bikers strikes – a motorcycle visor steaming up. And if you wear glasses, they’ll mist up too, double trouble. Visibility drops to zilch and riding becomes a nightmare. The simplest solution is of course to stop breathing. However, I tend to find this detrimentally affects my riding, especially on long rides…
Stop helmet fogging – the cause
Cold air, wind chill and rain dramatically reduce the temperature of the inside surface of your helmet visor and your glasses, such that moisture in the air you exhale condenses on these surfaces causing them to mist up. This condensing moisture forms tiny water droplets that scatter light and reduce the ability of a visor or glasses to transmit contrast.