Your edit is correct AF = Arctic Fox.
Those are the wheels that came on my 5er. They were an upgrade, which I paid a little extra for. They are 16". I had the 16" ST tires removed and had 16" LT Michelin XPS Rib mounted on all 5 wheels.
BIG, The wheels that were standard on my 5er looked much cheaper and that's the reason I upgraded to the wheels on the picture. I ordered our 5er and got it equipped exactly the way we wanted it. You may want to consider ordering one. It doesn't cost anymore than buying one from the lot. My wife got to pick all the interior colors and the items she wanted. I got to pick all the outside items and some inside items I wanted, including the two slideout toppers (awnings) to prevent debris from getting on top of the slideouts and getting trapped when you run the slideouts in, the larger Genset, 5. 5KW, the wheels in picture, the Hide-A-Bed sofa, the free standing dinette, extra large Refer and the low profile AC. I still got almost 30% off of MSRP. My wife and I have been very happy with our 27-5L AF 5er.
griz