Those Threshold power numbers are pretty amazing. Anyone who rides with power knows that anything over 400 watts for even 10 mins is nuts. I am about 78 kgs, and I can prob just average 400 watts on a 10 minute climb. This bloke is doing it for 20-40 mins (which is a pretty loose time frame - coz 40 mins at 400 watts is *ing nuts), but even more impressive is he is in the 60s kg wise.Froome's data released, maybe more coming, apparently a scientific report still to come.
http://www.cyclingnews.com/news/chris-froomes-physiological-test-data-released/
amazing numbers even more appreciate when you do ride with power.
Another funny thing to note is Sky use stages which are horribly unreliable, so who knows with this stuff...