Contour-X Helmet - Solid - Blue Frost - SmallLogo duct works well at low speed and with an upright riding position and can be opened or closed easily with summer or winter gloves, via a short stroke lever placed at the top if the rider can't see the lever and the logo is in its normal place, the duct is open. Rear spoiler sits a little more forward on the shell and is fed by 3 ports in the shell and efficiently draws air, but also smooths airflow over (and from the side) of the helmet, improving