TheEndura D2Z Aeroswitch Road Helmetwas developed with the goal of being the fastest in the world. Tested scrutinously against its rivals, it shows incredibly positive results. The added benefit of a detachable aero tail makes this an aero option for road riding and time trial positions alike. Endura's relationship with leading aerodynamics consultancy Drag2Zero has brought about step-change advances to the world of cycling aerodynamics. With the Aeroswitch helmet, the Scottish manufacturer committed to extensive wind tunnel prototype testing resulting in a short-tailed design which is highly effective. The wider tail provides a more stable flow of air off the head and onto the rider's back. The profile is not only exceptionally aerodynamic in direct airflow but also minimises the negative effects experienced as yaw angles increase ... More info