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wasn't his 'empty the tank' ride motorpaced? i.e the average speed would not reflect either the aeroz or a solo effort?
No idea for the rest. Going up hill there's not going to be much advantage, defo not the deep crabonz, but downhill/valleys I guess so. Dumoulin did have Reichenbach pulling for some sections too though.
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@Acliff
Any thoughts on Froome riding an aero bike with deep sections (Pinarello F10) vs Dumoulin on his TCR advanced?
Using Cycling Weekly's aero bike test as a rough guide, the difference between the Madone (their best in test) vs Giant's propel was 19w at 45kmph.
I imagine Froome's speed for the descents and flat sections would be around this speed (also referring back to his average speed for his'empty the tank ride')
The TCR advanced is going to be less aero than their propel by a decent margin.
Over 50km of flat roads, maybe 45 seconds saved with a 10w aero saving, considerably more if the aero advantage is greater.
Maybe if Dumoulin was on an aero bike, the damage done on the descents and flats would be significantly reduced?
(I appreciate the above is not scientific in the least, but thinking out loud that a 10-20w aero advantage gained in equipment, from frame, helmet, from saddle change to a Specialized power saddle, to deeper wheels would have a significant impact in a 80km TT)