The SR1 is developed in the wind tunnel and it meets the high standards of racing helmets. The SR1 causes no lift and there is no buffeting or shifting for good stability.
A movable spoiler on the rear side of the helmet provides added stability at particularly high speeds. Above all, the SR1 is still extremely quiet.
The noise insulation can be individually adjusted with a control on the side spoiler. Will you choose a quiet ride or do you want to hear when someone starts overtaking?