Originally Posted by brewerbry

I also believe the AR-1's are very sensitive to lower temperatures when driven on the street; what I mean is that I had "abnormal" inner shoulder wear and I believe it was due to not putting enough air in the tire after my last track session and then driving home. I had to replace my front AR-1's and added tpms sensors at the same time which allowed me to keep an eye on pressures on the way home from the track and I was able to keep 32 psi in them for the trip home and had MUCH less "abnormal" wear. I found it interesting that the pressures did not quickly after a track session but they fell quickly once I started driving on the street. I just add 5 psi before I leave the track and the check again when I get gas and have to add more then.

I can't imagine how my wear would be if I were running at 28 hot - I run 32 hot front and 33 hot rear in a 981 Cayman S.