Met rivale helmetthe development of therivaleis the pinnacle of decades of experience in helmet construction and design with the rivale mets engineers have redefined the parameters of aerodynamic efficiency via meticulous hours spent in the wind tunnel and incorporating athlete feedback fromteam mtn qhubeka the streamlined and compact shape provides unbeatable low drag performance for its class with a saving of 3 watts at 50kmh utilising the venturi effect the strategically positioned v