This unique cooling system feeds air from your cars fresh air system to both the top of the head and to the front of the face while at the same time helping to keep the inside of the visor clear. The system works with the existing design of the helmet and does not require any drilling of the shell or modifications to the EPS.

Top Air System can be fitted to all ST4 Formula and Wide GT model helmets. Thanks to the special adhesive used it can be removed and repositioned without damaging the helmet finish or most paint jobs simply by replacing the adhesive.

This top air kit covers the 4 holes without an adjuster