Yes, I watched your video.
Then you can see that they are not sealed properly.
The Dayton design is engineered for tubeless operation, and they have supplied tens of thousands over the years with success.
Firstly we have come across failures in tubeless wire wheels from a range of wheel manufacturers. However; just because many people have used tubeless wire wheels and not had a problem does not mean that failures do not occur. and you can clearfly see aa failed one on that video. and the older these wheels get (ie the more tyres are taken off and on these wheels) the more failures we are going to see as the mastic is disturbed. i don't believe the mastic is a proper engineering solution.
Recommending that someone install a tube inside a tubeless tire is wrong and dangerous. The interior wall of tubeless tires can cause friction and failure of the tubes.
That is wrong. Use a good tube. probably Michelin Inner Tubes | Longstone Tyres
Any 70% profile tyre regardless of weather it is called a tubeless tyre or not can fit an inner tube. It is incorrect to say
The interior wall of tubeless tires can cause friction and failure of the tubes.
that is not relevant to a 70% or taller profile tyre. That is for low profile tyres.
Ruote Borrani Milano
The Dayton wheels may well have shortcomings compared to Boranni is some ways. The Daytons are very heavy, much of which is due to very heavy construction of the rim. This makes your video irrelevant to Dayton wheels.
use an Aluminium rim
We have had this failure, and air coming out around the spokes with a range of different manufacturers of tubeless wire wheels.
I believe you are unwisely assuming the Dayton design and Boranni are largely similar.
We work with wire wheels all the time. the Structural part of wire wheel design is principally the same. I believe the Dayton tubeless wheel design puts some Mastic over the spoke heads, and when a tyre is changed it sometimes pulls out. In our experience some times we have had tubeless wire wheels that have leaked when they are first fitted with tyres. and having tyres taken on and off increases the likelihood of failure.
It is fair to say that these tubeless wire wheels do have a safety rib built into the profile of the rim. which is an improvement if you are running tubeless, but first there should be a better way of sealing the rim.
I accept that the Boranni wheels offer many pluses, which is why I am considering a set. However, if a vendor makes irresponsible and technically incorrect statements, I am inclined to shop elsewhere.
This vendor has not made a "irresponsible and technically incorrect statements," this vendor is sharing his experience from having dealt with lots of wheels.
I'm sorry but i feel you must have been fed some false information from else where.
I do not have a particular thing against Dayton wheels. I think they generally make pretty good wheels. However our experience is that we occasionally come across a failed tubeless wire wheels. And on top of that every time tyres are re fitted to these mastic coated wire wheels there is a greater likelihood of having a failure, as the mastic gets disturbed on the spoke heads.
there is no need for tubeless wire wheels.
All cars that fitted wire wheels fitted inner tubes in period.
all cars that fitted wire wheels as standard fitted either 70% profile tyres or taller. all of which can be fitted with a tube regardless of weather it says tubeless on the side wall or not.
Fit good quality tubes in every wire wheel.
Do not fit anything lower than 70% profile on a wire wheel.
(this bit always gets people revved up) fitting anything lower profile than 70% on a car that was designed in the wire wheel period will have a derogatory effect on the handling unless you modify the car to suit them.
(It is fair to say that some modern Morgans come fitted with low profile tyres on tubeless wire wheels, and we have come across failures with these too. when we have fitted modern Morgans with taller thinner tyres the owners have been over the moon with how much better the car handles on a thinner tyre )