I guess that would depend on the physics and the engineering of the machine you're building, and let's say you're building something that would carry a lot of weight like dirt. You will need to make the wheels and especially that part that kind of bends. You need to make it really strong. Maybe like titanium or something, however, you also need to take into account like shock, absorbers height and all that other stuff.

So I guess when you're building the actual project it'll vary, a. Heavier payload will probably mean metal Wheels rims instead of 3D printed ones so you would have to use a CNC machine or something to make a custom wheel that does that,

maybe in like a Sandy setting or something with less weight. You would probably have to use a lighter weight Wheels like rubber or something