There seems to be a wider availability of wheels for a studmount system versus a hub mount-- WITH the small center hole. Plus, I can then go to a tubless. I have also thought about going to a super-single style in the rear if I can find a wheel with the correct offset, bolt circle etc...
Have you done your research on these "options" you list? Where are such wheels available?
Something sounds fishy, or lost in translation, can't figure where we're getting confused...
-Do your hubs have 10 studs on the rear and 5 on the front, both with a 7.25" bolt circle diameter?
-Does the pilot area on your hubs measure 4.75" as well as the center hole in your wheels?
If the above are true then I have never seen a
stud piloted wheel new or old to fit.
I've also never seen a tubeless wheel that is a direct fit (differing center hole diameter).
Don't know of any "super singles" with that bolt pattern.
What are you trying to accomplish?
Grigg