The wheel in your photo IS NOT an RH-5. It's a 3 piece wheel, consisting of a barrel section with the center and the bolt holes, a full circle outer bead ring, and a split ring that locks everything together. It's perfectly safe to run "as is"- - - -there's no need to look for different wheels unless you want the convenience of running 22.5" tubeless tires. How about the front wheels? Do they have a flat raised area about 2" wide out by the barrel part of the wheel? That's the simplest way to identify the illegal and dangerous RH-5's. Because of the way the front wheel isinstalled, you'll need to look INSIDE the wheel to see that raised lip if it's the "widowmaker".
It seems that I'm just full of misinformation today- - - - -when I enlarged the pic of the rear wheel, it is indeed a RH-5 design. Those wheels will need to be changed, either to 22.5" tubeless, or the 3-piece 20" wheels I mentioned above. Sorry for leading you astray!
Jerry