I'm going to order a 2022 soon. For sharp rocks and sand in the American Southwest, I would assume that the smallest wheel size (19" for a P400) would be ideal. However, it looks like tire options are quite limited for the 19" size and that the wheel width is 8" (vs 8.5" for the 20"), which would limit non-standard tire width options.

Any thoughts on 19 vs 20?

 

On this very page are 4 tire threads, encourage you to start there before creating a new post. Short answer: 19s much more limited in choices.

 

If you're good with only Good Year 19's may work but very limited tires are available. 20 is best from the factory or Lucky8 may have the best solution https://lucky8llc.com/collections/de...brake-calipers

 

Thanks! I didn't realize the 18" kit was out yet. Guess I'll order it with 20's so I could later fit snow tires and have more AT selection in 18". That would be perfect.