Also, I can't believe that there isn't a more Aero design for the radio units? Wasn't there a design a couple of years ago putting them in the tail of the Aero helmets?
The units just need to be smaller, which they would be if they were designed recently. Unfortunately they are all an old (Motorola?) design.
Who says that lump in their backs is less aero?
@branwen started
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Also, I can't believe that there isn't a more Aero design for the radio units? Wasn't there a design a couple of years ago putting them in the tail of the Aero helmets?