marcag wrote:
You can do some back of the napkin calculations to see it all makes sense
4h 180km = 45km/h. For a total mass of 80kg, flat course, no wind, crr = 0.004 (wet), guessing an air density, a 0.230 cda will give 300watts
5 minutes slower, same watts would be a cda of 0.245.
I'm not sure I agree - sure the calculations are correct, but this all makes the assumption they both put the power out in exactly the same way.
Cycling isn't all about power, it's also about skill - how well you corner, change gears, distribute your power uphill and downhill, how you accelerate and decelerate.
For example, watching the broadcast, Jan was noticeably faster on the corners and also took a better line. He does a lot of riding outside, Sanders seems to do a lot inside, and that must make a difference. The course, whilst flat and relatively straight, still had a few corners and false flats to make this a factor.
I feel we become obsessed with tiny gains in aero but forget the skill element. There's a lot of finesse to good cycling, it's not just mashing the pedals.