These ARE tubeless rims, please get your information correct before posting nonsense!
You can mount a tubeless tire, with an inner tube, onto a tube type rim, as done on the RE650...because the tube seals in the air, regardless of whether the tire seals to the rim.
To "set" a tubeless motorcycle tire, onto a tubeless rim (with no inner tube)...you don't need a super strong air supply. I just wrap the tire with a ratchet strap, tighten it down, and it forces the tire bead out against the rim...then just a blast of air, with the valve core removed, will usually pop the tire onto the rim.
Yes, I know that they now have some sort of goop that you use seal the rim..be it bicycle or motorcycle so that you can supposedly mount a tire without and inner tube. Looks like a cluster f-ck to me...
Yes tube type motorcycle tires run hotter...not good for racing speeds...normal riding not an issue.
Tube tires were the "norm" for decades, (even a century)....they still work just fine in classic bikes, and modern classic style bikes.
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