I run 41 front and 43 rear. On this trip I added air in small increments twice and let air out one time. I am sure the pressure fluctuation was do to temperature and altitude differences. I check my tires every morning before I start the days ride. I have never had a rear tire that I was comfortable with past 14,000 miles but I am hoping to do significantly better with the Elite 4's. The heat in Arizona where I live and do a lot of my riding is very hard on tires so if a tire lasts here it should do well elsewhere.

As I said before I am very satisfied with the performance of these tires under all circumstances and road conditions, and they seem to be wearing like iron. I will buy them again.