We recently had 2 sets of Wheels/Slicks sitting side by side and got a true perspective on the different wheel widths. Both sets of wheels have the Mickey Thompson 24.5x9x13 ET Drag Slicks mounted on them. The 13x9's are definitely showing the potential for more tire contact patch compared to the 13x8's that are pictured. Actually a bigger difference that I thought there would of been. Gives you some interesting food for thought for your next drag wheel purchase.