Replacement rear spoiler for ARAI Contour-X helmets Aerodynamic rear spoiler with one piece exhaust function The one-piece aerodynamic rear exhaust/spoiler, operated by a 3-way switch, is inspired by the DF-X2 of the Corsair-X, but redesigned for touring use Sits a little more forward on the shell and is fed by 3 ports Efficiently draws air but also smooths airflow over (and from the side) of the helmet, improving stability and reducing buffeting, especially while overtaking at highway speeds resulting in less rider fatigue Manufactured as thin and light as possible, it's designed to crush or break away upon impact, therefore having no influence on protective performance You may also like Bell CUSTOM 500 5-SNAP REPLACEMENT KIT HORNET X2 VISOR TOP BASE RPHA 1N SPOIL VENT MATTE BLACK