Giro Advantage aero helment
Well ventilated ans super aero are exclusive of each other. The more ventilation you have, the more drag.
The Syton isnt nearly as aero as the Rocket or the Avantage. The Advantage IS available- http://www.trisports.com/aerohelmets.html#top
Life is short. Play hard and get dirty doing it.
I rode in a Rocket for the first time yesterday (yes, felt like a geek in it on the bike path, but "nothing new on race day"...) and it was actually pretty comfortable. It was one of our cooler days lately, but I didn't even notice a temperature issue with it.
However, I have also found that the Rocket fits my position really well, and my boyfriend rides in one, so those were also factors in picking it.
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I know they aren't available in the U.S. yet, but does anyone have personal experience with them. It's between the Giro, the LG Rocket, and the Rudy Syton. I'm looking for a well ventilated helmet that is super aero. Any help is greatly appreciated.