Hmmm,
I had a quick look at ARB sites for my Prado, no mention of weight carrying ability, seems to use factory mounts and around 13kg lighter than the rhino. Their blurb states 25kg per cross beam so you would have around 5 cross beams for the same size rack as the Rhino so it implies 5x25 = 125kg. Just as bad as Rhino. I guess it also uses factory mount points.
Tracker lander equivalent, about 2kg lighter, supposed load rating 150kg no mention if this is the off road or on rating and uses factory mount points so according to Toyota 100kg max on road.