Aero Ad­van­tage

Triathlon Magazine Canada - - Front Page -

Giro Air At­tack Shield; $260 without shield, $310 with shield This new hel­met is fast but sig­nif­i­cantly more com­fort­able than the stan­dard aero hel­met. Wind tun­nel testing and re­search showed Giro that they could main­tain only the front por­tion of an aero TT hel­met and pro­duce a more com­pact, trun­cated back without sac­ri­fic­ing aero­dy­namic ad­van­tage. In other words, air hit­ting the hel­met in the front acts the same way it does if there was a tail shape – it f lows around the ab­sent shape. As Le­anda Cave demon­strated while win­ning Kona last year in a shield-free ver­sion, the Air At­tack is per­fect for hot con­di­tions. The Air At­tack’s six vents and in­ter­nal chan­nelling keep cool air com­ing in and force hot air out. Heat af­fects per­for­mance, so max­i­miz­ing cool­ing can help rid­ers fo­cus their en­ergy on max­i­mum power out­put. The ad­justable chin strap and Roc Loc Air fit sys­tem al­lows you to per­son­al­ize the fit to ac­com­mo­date to your skull shape, but it also keeps the hel­met off the rider’s head to op­ti­mize air f low. The re­mov­able X- Static com­fort pad­ding en­sures a snug fit and weight­less feel.

Rac­ing in the Air At­tack with tense shoul­ders and low in my bars, I re­ally ap­pre­ci­ated not hav­ing a tail ag­gra­vat­ing my neck. My favourite fea­ture of all is the shield at­tach­ment. The Carl Zeiss Vi­sion lens is mag­net­i­cally-an­chored so it sim­ply locks into place. The lens can be taken off and stored in your back pocket, or can be con­ve­niently turned up­side down and locked in place, while hug­ging the frontal sur­face. The wide lens al­lows for bet­ter pe­riph­eral vi­sion than with sun­glasses. Un­for­tu­nately, the start of my test race was very over­cast. If there was rain, the shield would have been bet­ter than sun­glasses, but I elected to re­move the tinted lens and wear clear glasses in­stead. Ide­ally, I would have had ac­cess to a clear Carl Zeiss Vi­sion re­place­ment lens, but over­all this is an ex­cep­tional hel­met. In the age of in­creas­ing triathlon gad­gets, the Air At­tack is a stream­lin­ing op­tion that can be worn as an ev­ery­day or aero hel­met.

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