I bought mine from Costco here in Washington. But they won't install them on a motorhome and they had to order in the Bridgestones that I wanted. I had to take my wheels in (without the motorhome attached) in order for them to mount the tires but that wasn't an obstacle for me. Around here it's pretty hard to beat the prices of Costco or Discount Tires. I find Les Schwab to be rather expensive and their name brand tires are limited to Toyo. Schwab can order in other name brand tires but I saw no reason to mess with them because of their high pricing.
