Yeah they're narrow, but at least them being an inch smaller gives more sidewall, so you can still get away with a similar width of tire. Continental states 7-9" rim width for the 255/50R19 I have. Pretty much all of the wheels with high enough offset for my car are also 20x8.5.

 

The other day i was checking out the Cooper sight. Seen the A/T tire. However according to the Cooper sight they dont make them in my size. They showed an LSX tire. I didnt see the Discover HT in the correct size. I am thinking they dont make the HT in my size any more.

 

if you are wondering you can either ask your tire shop or go directly to COOPERs website and check there for it, they do seem to have a larger variety of sizes than most of the other tire companies (at least the sizes i was looking at)