I had a blow out a couple weeks ago and got Lucky I guess got 2 new Nankank 18R-14/8 N810 tires from The LES SCHWAB dealer in Davenport , WA they were the only 2 he had I had considered replacing all 4 rears . HE checked there system and said they had 100 of them company wide and could have them in a few days . As we were on our way home we passed on waiting the rest of the tires are still pretty good . but if you are out west LES SCHWAB has or can get them.