The Z1 FAST helmet has an integrated and non-removable cover that is attached to the EPS liner to create some serious advantage
The Z1 FAST has a distinct advantage over a regular road helmets aerodynamic performance
The shell closes off most ventilation holes thus it creates a surface that glides through the air much easier
It does however keep the rear vents open to allow heat to exit the helmet
Tests have proven that the Z1 FAST helmet can provide gains between 4 and 10 Watt when cycling at 45 kph or a difference between 12 and 30 second over 40 kilometres
Thats the difference between ending on the podium and being the winner
The Z1 FAST aero performance from a road helmet
Size: Small 52-56 cm Medium 55-59 cm Large 58-61 cm
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