The '11' is the size of your rim, 23 is how tall your tyre is, 8 is how wide it is. Height and width can be changed as the tyre is flexible. In my picture (to your left) I have 24 x 10 - 11 fitted to the front, the same as the rear.im so confused though. the 24x9-11 tire will fit on my rim with the 23x8-11 cause im going to the shop tommrow to get them changed takeing off the 23x8-11 and putting the
24x9-11 on the rim that the 23x8-11 came off