By tyre hasn’t blown of the Nextie rim, it’s been on there since Friday 10th September.
It’s inflated at 35psi which is 2.4bar and so far no problems.
Nextie hooked rims, need a minimum order of 6 units. To be able to have hooked rims in 36” from them.
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It is not a high pressure. On my 36" I run at 3 bar (45 psi) and some go to over 50 psi.
Nine years ago, I first had many problems with 29" rims with 40+mm internal width and slick tyres. I had less problems with my 36" wheels (I only had one heat related tyre blowing, the unicycle was left in a car in the sun).
This kind of problem usually doesn’t happen right away, but in my experience there are some contributing factors: rim too wide, pressure too high, heat, tyre wear (tyres that have already had a blow problem are damaged, even if you can’t see it), of course the absence of hooks on the rim…
I don’t think that 29" tubes are to blame, but some tube models are not suitable (the 29" tube has to increase its overall diameter when inflated empty 29=>36, otherwise it will deform too much). I use the reference given to me by @bouin-bouin (michelin butyl airstop 700x35-47, available in europe only?) and I never had any problem. Many people use tubes without paying attention to this. Most of the time, they have a lot of trouble with the fitting (risk of pinching the inner tube).
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Six units doesn’t sound at all unreasonable. What’s the price going to be?
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I agree with @toutestbon. I have had many issue trying to fit another inner tube into my carbon Braus rim (pinching a few tubes and damaging my NightRider Lite tire 
). When I switched to a Michelin Butyl Airstop 700x35-47, it became pretty easy to fit the tire onto the rim.
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In Gpb Sterling they are just under £300 plus postage.
That doesn’t sound bad at all. Aren’t the hookless ones pretty close to that as it is?
I recently ordered one of these beauts (hasn’t shipped yet) and sent an e-mail asking if my specific order could be made “hooked”. Here is the response:
I’m sorry, but the 36-inch rims are now only available with the Hookless Version.
The NXT36XU42 rims are tubeless Compatible. It is no problem for you to run a tube or non-tube. Please feel free to let us know if there is any question.
That’s what they should have made in the first place. There are no tubeless 36er tires.
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Not yet, but there has been talk about it for years and years.
But I think you make some good points in your Nightrider lite video to why Not run a tubeless setup.
The liquid will weigh just as much as a light tube.
Tried tubeless and the bead set solid and held 30psi over night so I decided to risk it…
I know people make these work but I am going to have to shelve the carbon rim for a while in hopes we get a tubeless tire in the future. I like to ride fast and it’s not worth the risk for me to have a blowout at speed
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Well, that sucks!
I wonder if there’s any way to add a groove to it. Maybe using a dremel or die grinder with a round burr and a depth guide so that holding it against the edge of the rim would ensure a uniform distance from the edge?
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Why don’t you use the ghetto half tube setup? It never failed to me
+1 for the split tube method. My split tube setup holds rock solid, burped not even once
I haven’t heard of this can anyone shred some more light in this.
Here is one link that describes it pretty well.
If the tire fits tight on the rim and it is hard to install normally the split tube method would likely not work.
A ghetto tubeless setup is heavier than a 29" inner tube. If you really need to put preventive fluid, it can be put inside an inner tube with a removable shell.
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Why’s this? Aren’t you using less than a full 29" inner tube for this because you cut the edges after installing? (I used about 75% of a 18" tube to make a 24" ghetto tubeless.) Or do you think it’s because of the milk?
On the other hand, tubeless is not all about weight, it’s also the tire’s dampening characteristics.
Are there any commercially available tires and tubes that are officially compatible with this hookless rim? I suspect not. I’m also not aware of any 36er Presta tube. Sure, there may be combinations that “work” but it sounds like Nextie (and Braus/Alchemist) have produced a rim for which there’s no tire and tube.
I guess not, but my setup with the Nextie rim, Vee Tire T-Monster and a stretched Schwalbe SV19 and ~45 psi seems to do just fine for nearly a month. I have only ridden it for 4-5 hours in total (10-15 degrees celcius outside temperature) and the rest of the time it has been stored in the basement at approx 20 degrees Celsius. So it’s a calm and not very punishing environment but due to how difficult it was to mount the tire on the rim I don’t believe a tire blowout is likely.
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