Roadtrek 190 Polpular Tire

We use, and quite like, Michelin XPS Ribs. A bit pricey, but oh what a difference.

Cheers.

A) What does it say on the vehicle weights and measures sticker or plate, wherever that is located? Usually has the tire designation, including P for passenger, and LT for light truck.
B) Check the owner's manual for the same info.
C) My 2002 190P on the Chevy chassis liked to wear LT245 75R16 Load Range E. It weighed around 4 + tons loaded.

Unless there's a pressing reason to put passenger tires on it, I'd go with the light truck tires.

EDIT: I have used Michelin LTX AT2 and MS2 models on mine. Preferred the AT2 for the more aggressive tread design.