This is how TorHans tested all their equipment - it's a set of dummy arms that makes for very repeatable tests. Although if I'm nitpicking, I'll say that I don't think his hands are optimally positioned - I think it's usually best to wrap hands around the front of the shifters.
The TorHans company is bringing some thoughtful engineering into the world of aerobar-mounted hydration. I took an in-depth review at their Aero 20 product, which is both easy to use, and tests very well in the wind tunnel. See the article for a link to their wind tunnel data.
The Speedfil A2 is here, and it's trying to be the best of all worlds in front-mounted hydration. Hit the review to see whether the effort has paid off.
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