I ran with this setup over some of the narrowest, tightest trails using my leftover hardcore Jeeping technique:
compare the super with a stock size spare tire, both mounted:
After a while, it was obvious that something had to go south and it was the 12 inch wide cast aluminum wheels: @ 3600 pound loading they were adequate but not very tough against endless rocks along the sides of the trail:
The next version was Stockton Wheel steel "Power Wagon" wheels. They have a stupid high load rating due in part to the 1/2 inch steel plate center hubs welded both sides onto thick wheels. No cut outs. But they are heavy.
Compare the set up below to the first pic. This one is about 4 inches narrower and fits better on narrow jeep trails:
jefe