BFG Drag Radial

[pedro]

I have two set of rims.The first set are 17x13 and second set are 18x12 looking to get a set of BFG DRAG RADIAL mounted on one of the sets. Which one will be better to use 17x12?and which size tire.

 

[VIPER D]

I think that 345's only come in a 18" rim.

vd..