Back in the mid 90's Winnebago made a coach called Luxor that had these large wheels & tires on the rear. It was also a four wheel steel design. They did not make many of them.
I did some maintanance work on one and would not like to have to buy one of those tires.
Mike, RVIA & RVSA Certified Master RV Technician
Amy, Dr. Assistant - Roxie & Mei Ling, four legs each
2000 Gulf Stream Scenic Cruiser 450 hp & 1330# torque
06 Saturn Vue, 06 Chevy Z71 4x4 & 2014 Corvette Z51 M7