scottfsmith

Thanks Sy Reene I missed that page somehow.

Here is a graph of their data for 21mm rims that I did which like the earlier graph puts all the tires on one graph:



Indeed the 28mm is odd. The fact that both 17mm and 21mm rims had a similar curve for the 28mm tire tends to make me think this is not just noise in the data. Note that these numbers are different than the previous ones, they are all lower.

The pavement looks a lot like average pavement around here, 5-year or so years old and plenty of tar missing.