Originally Posted by
Iride01
There are tubeless tires that are for hooked/crochet rims. So I'm not certain why the OP seems to pose that going to tubeless tires will require smooth bead or hookless rims.
And the word "safe" always gets thrown around in the mix. At the speed most cyclists ride, a tire rolling off the rim or burping air is just going to result in one having to come to a stop and address the issue. Not a automatic trip to the hospital.
25 mph, after a hill on a gentle descent. Hard helmet hit, broken collarbone, ribs (how many and whether cracked or broken I do not know as I passed on declaring them, the subsequent at least 4 chest X-rays, several hundred dollars out of my pocket to hear the words "there's not much we can do. They'll hurt a while and heal up doing nothing". An acre of road rash. Tire came off rim and jammed in seatstay. Prior to that I was riding on the aluminum rim trying to nurse the bike around a slightly off camber turn. Think winter ice.
And no, it wasn't a trip to the hospital. I had a bystander call a cab that took me to an urgent care.
Edit: And yes, I came to a stop (lying on the road) and addressed the issues. (With my body; concussion? boken bones? The bike got the attention a few weeks later.)