22 itps n 23s in front on my rap.gncc ones 6ply.elkas all ends[no wheelies unless you want to]want em for bansee too.waterproof EVERYTHING!dont know bout your promoter but ive seen 4x4s stuck to the tank!pick your lines well n stay on gas.since we don't have reverse stop b4 the bottleneck so you can pick an unpassable line around everybody so wen you make it you can say wow seethat shit! start werkin out cuz its rough runnin 3 hours. good luck bro!