16" wheels with mounted Goodyear G rated tires.
I replaced the 4 16" wheels with 17.5's on my 2015 RW 38RL yesterday. The tires have what looks like over 1/2 the tread life left. I'll post pictures when I get them cleaned up.
If anyone is looking for a set of wheels, make me an offer. I can ship via truck from North Carolina to most anywhere.
2015 38RL with MORryde IS, residential fridge, DW, washer and dryer, generator, and slide in slide. 2 A/C, 1 HP and a fireplace. Added 17.5 inch wheels. Follows a 2013 Ram dually diesel with 8' bed and Reese 20K.