The tires are about 8" wide, so you can mount them on rims up to 8" wide without any issues to worry about.
It is possible to mount them to wider rims, but then you will have to be very careful about inflation pressures to avoid problems. You will have to keep them somewhat over-inflated in order to keep them well seated. Over-inflating, however, will lead to uneven wear and can cause other issues as far as handling.
All in all, it would be best to limit the rims to 8" wide for these tires.