Or more accurately - what is the smallest diameter wheel i can run.. Has anyone fit a set of 18" to one?

I'm asking B/C i want to use a real A/T tire on it when this set wears out later this summer (it has pirelli's on it)..

Its an HSE Lux (non-super charged) 5.0


It currently has 20" wheels with 255/50-20 tire which looks like there a 4 whole choices -

I guess a secondary question is what are my non-lifted, non-rubbing tire sizes?
I don't want to put spacers on it or really lift it if possible (i have a Gap tool, but..)

Thanks

 

replying to my own question ( someone might need the info...

So 265/5-r20 looks potentially promising and just about stock sized with more options


255/50-20 265/50-20 Difference Diameter inches (mm) 30.04 (763) 30.43 (773) 0.39 (10) 1.3% Width inches (mm) 10.04 (255) 10.43 (265) 0.39 (10) 3.9% Circum. inches (mm) 94.37 (2397.04) 95.61 (2428.45) 1.24 (31.42) 1.3% Sidewall Height inches (mm) 5.02 (127.5) 5.22 (132.5) 0.2 (5) 3.9% Revolutions per mile (km) 671.39 (417.18) 662.7 (411.78) -8.69 (-5.4) -1.3%

Toyo Open Country A/T's come in this size, which is a good tire. (i run Toyo M/T's on the LR3) - Cooper Discoverer A/T3 comes in this size (but a Std load rating)
BFG looks like it does not offer this size.. or close..

Open to other options - 19"s and even better 18"s if i can fit it