I was a long time skeptic about putting Nitrogen in the tires. When I bought my new Harley Ultra Classic I said what the heck and had Nitrogen put in the OEM tires. I don't know if the Nitrogen contributed to the tire wear but I got 16,000 miles on the front and rear original Dunlop tires with no uneven wear. The 2-1/2 years I had the Harley I had the tech at the dealer check to see if the tires needed additional Nitrogen and they did not. In all of the years of riding I have never gotten that many miles out of a set of OEM tires. At the time it was only $8 per tire. Guess what I’m going to do to the tires on my new Goldwing?