When I was scrolling through the pro bike pictures, I noticed something interesting. It looked like at least 3-4 pros were riding with the Giro Selector helmet. Considering that almost everything I've heard about that helmet is that it gets incredibly hot, especially over an Ironman, why do you think several of the pros ride it at Kona, one of the hottest races around? Maybe it's not as hot as people say or us mortals don't ride fast enough to get the full cooling benefit.

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If people can see you from the front you're not aero enough.