AERO ROAD HELMETS
They’re a winning hybrid of TT and standard helmets, but how should you pick an aero road helmet for your training and racing needs?
The curvature of a helmet will aid aerodynamic gains by channelling and smoothing the airflow over the top, while the dimpled design creates a layer of turbulent air around the helmet to produce less drag force on the surface and cleaner airflow.
Aero road helmets will have less vents than a normal road helmet due to aerodynamics, so the limited number they have need to be in effective positions but not at the expense of drag. These tend to be positioned at the top and rear; the Vitesse, here, has 14.
Although speed is key, an aero road helmet needs to offer comfort for lengthy endurance stints on the bike. The padding should be quick-to-dry, ideally anti-bacterial and offer cooling properties, and will almost certainly be removable so you can wash it with ease.
The ratchet or retention system will secure your head into the helmet and should be easy to access on the fly. A dial is currently the most common adjustment system on aero road helmets, but ensure the cradle sits neatly into the back of your head.