Catlike chrono aero wt helmetall surfaces and details are designed to maximise its aerodynamic properties moreover the aero wt features different configurations that allow the rider to choose the one that suits their philosophy and riding style its internal adjustment system allows for an optimal fit providing extra comfort to the ride in some of the most difficult disciplines such as the individual time trial or the sport of triathlon features wind tunnel tested mps evo 4 in 1 offers 4 adju