The 1984 US Olympic track team filled their pursuit bikes wheels with helium.
From what we've seen previously, it does not look like He offers any noticeable weight saving, unless maybe I missed something else?
If the weight saving is negligible, does this not put it in the same league as those riders who wear those tapes across the bridge of the nose, supposedly to facilitate breathing. I mean, there is no better way to breathe in quantity than through the mouth. Through the nose is fine if you are fairly quiscient, but under normal riding stress I don't think you could breathe fast enough through the nose?
Does Helium=Nose tape=DiddleySquat benefit?