I don't even ride tubeless on my modern bikes that can. Not sure why tbh, aside from its the devil's work.
I should really try it out one day, I have the wheels, tyres and fluid. I just k is my way around a tyre and tube. That said, I have graduated to a 29er so maybe......
I was thinking the same initially, but other than weaker/thinner/pourous sidewalls, especially on gumwalls, I'd imagine the rims would set up ghetto just the same as another rim?
I went tubes with my mavic x517 rims and a Stan's tubless setup and maxxis crossmark tires. It works great. It's a pain to set up in the beginning but the results are well worth it.
If you get one of the stans conversion strips and something like a 517, it will work with some tyres.
I did a set of wildgripper sprints for a laugh. They worked ok.
Only issue i think would be with the long term durability of older tyres, not sure how they'll stand up to the sealant.
If you are using modern tyres, i think you'd be fine.
I run nothing but tubeless with sealant on my modern bikes.It is a complicated subject but for safety reasons you cannot just pick random tyres and rims and run them tubeless.The sidewalls on tubeless tyres differ from the tubed equivalent for a start.
The hook shape on the rim can be either standard,tubeless ready or full tubeless.
Tyres for tubeless use are either straight tubeless or tubeless ready,standard tyres cannot be used as the connection between a standard rim and the tyre will not be secure and especially at high pressures can blow off the wheel.
Technically tubeless tyres and rims can be run without sealant while tubeless ready requires sealant to seal,although in most cases sealant is used anyway.
In retro terms you need a UST rim (mine dated back to 2004) or tubeless ready (many Specialized rims came with this feature in the 2000's).
I have a project on the go which involves running an early Clockwork as a drop handle bar gravel bike with rim braked tubeless tyres but I am having difficulty finding information as to which rims are suitable for conversion.
I've got two sets of wheels that are designed for tubeless, both show corrosion from the fluid - one in under 12 months. Even the painted set showed corrosion after a few years. I won't run tubless for this reason.
This was a known problem with Stans sealant and certain Shimano rims.I use Orange Endurance Sealant on Campagnolo,Novatec and Specialized rims with no problem (oldest rim into third season)
Orange sealant also seems to work better at high road tyre pressures,although probably not an issue at MTB pressures.