marcag wrote:
Here is their data for good roads (Kona). Green 28mm, red 25mm, blue 23mm
Yeah...that's more of what would be expected, at least for general trends and the ranges of minimum Crr.
Even so, the shapes of those highly smoothed curves aren't exactly what I would expect based on previous data and theory.
edit: not to mention that 40kph is significantly faster than the 20 mph max (32.2kph) reported for the rolling road setup. All things being equal, greater speed would tend to shift breakpoint pressure to the left, not right. In other words, if the treadmill truly represents pavement, then the data should look similar to that plot, but with the power minimums shifted to slightly higher pressures.
http://bikeblather.blogspot.com/