These are Hi Spec Series 04 (AW1507). I opted for the open ended SS center cap and steel valve stems which they installed prior to shipping. Purchased from http://www.trailertiresandwheels.com
. The lug nuts and lock lug nuts are McGards that I removed from my '96 Ram before I sold it. Had to get 4 more from Summit Racing to complete the set. I like the Maxxis tires. The previous set was wearing well and had lots of life left but the failed rubber valve stem begged to differ. The black smudges on the valence were the only damage from the flapping tire. I got lucky.