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I'd switch them. I swapped both of my trucks, B42 with 20" spokes to 22.5 tubeless rims. B73, I debated long about keeping the original 22" spokes or swapping to Budd hubs. I wanted the look of the Budds and the aluminum rims. Either way it was going to get tubeless 24.5"s. The swap was worth it for the variety and accessibility of tires if I ever had an issue on the road and needed a tire, which has never occurred, thankfully. And they're radials, which wear and ride better. If you drive it or use it I'd make the swap. Unless it's a really great original truck and your desire is to remain factory original.

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You used to be able to get bias tubeless, bias and radial are ply construction, tube or tubeless is another matter.You can and I do have tube type radials, and I have a bias tubeless.

22" is more of a problem than either bias, radial tube. the 22" size is hard to find, for that reason alone I would say go 24.4 tubeless.

20" used to be a lot easier to find, and a lot more choices when you did find them. I guess they are getting harder now.

 

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If there are 22" bias or radial tube tires available anywhere I am interested.

I have 22" Alcoa's split rims on a LTL. My tires are OK for short runs and shows but I would never take a trip or have any weight on them now. These tires where hard to get 20 years ago and had to be ordered from India. Cheat is the brand. 

I put 24.5s on another truck as good 22" Alcoa's are nonexistent today as well as the tube tires. Then try and find a tire shop that will work on split rims. So 22.5 or 24.5 is your only option now.

Also a great point by, mattb73lt, if you get a flat or need a tube tire no one will have anything but 22.5 or 24.5 tubeless radials in a shop anywhere.

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Quick question are tubeless rims available to replace 24in split rim Dayton spokes? Geoff Weeks and others already know the trouble Im having getting tube type tyres and I think the tubeless route is the only option as changing to hub pilot wheels is just too expensive.

Paul

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I may be wrong but I think I remember seeing some trucks in the Keystone Truck & Tractor Museum a couple months ago with 24 “ inch wheels. Tube type. But can’t ever remember seeing a 26.5 tubeless . If anyone knows what is still available it would be the staff at Keystone . 

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10 hours ago, 1961H67 said:

I may be wrong but I think I remember seeing some trucks in the Keystone Truck & Tractor Museum a couple months ago with 24 “ inch wheels. Tube type. But can’t ever remember seeing a 26.5 tubeless . If anyone knows what is still available it would be the staff at Keystone . 

We've been over this, time and time again.

There is no "tubeless" 24" truck tire. There is no tubeless replacement for 24" tube type tires. There are Mfg in the far east  that make tube type 24" tires.

Cruiseliners tire shop is mistaken, they don't want to admit it, but if you look at the MFG tire catalog for the tire they claim to be "tubeless" RIGHT IN THE CATALOG it is listed as a TT or TUBE TYPE!

I'm sorry to get so adamant about it, but it is right there in black and white from the mfg of the tires.

To my knowledge, there isn't nor has there ever been a tubeless 24" truck tire in the sizes we are talking about

The reason tubeless tire are "half sizes" I.E. 22.5" and 24.5" is because there has to be a "gutter" or drop center in the rim base so the tire can be fitted over the one piece rim. Without that drop center it would be impossible to mount a tire, you can not "stretch" the tire over the rim, there must be a smaller section of the rim base to provide the "slack" , so the edge of the bead can be worked over the edge of the rim.That make the center of the rim smaller or the same size  at the center as the tube type it replaces. so a 22.5 rim measures the same at the drop center as a 20"flat based rim, same for the other tubeless replacements.

a 15" TT trailer tire can be replaced by a 17.5" tubeless, a 20" TT tire can be replaced by a 22.5 tubeless, and a 22" TT truck tire can be replaced by a 24.5. THERE IS NO 26.5" tire to replace a 24"TT

 So for the last time, if you want to replace 22" and I can see why, then 24.5 is the answer if you want to replace 24" then you need to get another 24" and use a tube!

For the people with 24" rubber, I am no longer going to answer, I have stated what I know time and time again, and the question keeps coming up with hand wringing and hopes for a unicorn that doesn't exist.

 

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Many thanks for that Geoff I know I may have misunderstood you with reguard to the tyre sizes.It seems I will have to go with hub pilot hubs and wheels as 24in tube type tyres are an absolute no no over here.It seems no one will import a small batch and no one is willing to work with split rims.Again many thanks for your help on this issue...

Paul

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Understand, when you do, you will loose road speed as well, 24" rubber is larger in diameter and has fewer Revs per Mile than 24.5" rubber.

I thought you said a crane operator had some on their equipment? Here 24" is scarce but obtainable.

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That was my point for the 24" tires, that all there is, 24" tube types. I've never seen a tubeless 24" tire. Obviously 26.5" don't exist and there's no rim to replace the split rims. Hard to believe they are so hard, if now nearly impossible to source considering all the trucks that ran them.

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6 minutes ago, mattb73lt said:

That was my point for the 24" tires, that all there is, 24" tube types. I've never seen a tubeless 24" tire. Obviously 26.5" don't exist and there's no rim to replace the split rims. Hard to believe they are so hard, if now nearly impossible to source considering all the trucks that ran them.

If your going to own a "classic" then you are going to have to get good at scrounging/finding stuff that that parts houses say "it doesn't exist" or they don't make that any more.

A decade or so ago, finding 8.25x 20" tires was easy, bias or radial no problem. Now there are a few mfg that make that size, but they are available.

 If you want to find a unicorn, try finding a 8.5x 20! I have some and have never even found the spec's let alone a mfg that still make them.

24"rubber has many advantages, that made them popular in other parts of the world, they carry more weight (something that our axle weight limits can't generally take advantage of) they have fewer rev/mile which makes them heat up less and age slowly, and they allow room for bigger brakes than the smaller sizes.

 A few years ago I saw a new side dump trailer on its way from the Mfg to the 1st owner. I had hub pilot 24" tube types on the trailer. I assume it was going to be use for off road work at a mine or some kind. They are still out there.

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You're right, there are some sizes that are very hard to source. From trucks to cars, some older (read obsolete) sizes are extremely difficult to locate and when found are of poor quality if you intend to drive on them. I've sourced a lot of tires over the years from Coker Tire as they specialize in antique vehicles. Years ago I bought a '40 Ford Deluxe Fordor. A mostly original car that came with almost new repro Ford script blackwall tires. While correct for the car, they wore horribly and didn't handle the rain well. I doubt I put 10,000 miles on them before they were worn out. Coker did have some European tube type radials that fit the 6.00X16" rims and those are far superior in wear and handling.

I'm still surprised that no major US tire manufacturer offers a 24" tire and we have to look offshore for a source. While low volume, there's still a lot of vehicles out there on them. Has the industry moved so far away from them, is everything from the last 30+ years resting on 24.5" rubber? 24" always seemed the heaviest of applications that I ever saw and for the reasons you stated. It just doesn't seem that a 24.5" tire could compete with a 24" in extreme service.

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I wound up buying 2 recaps from tire recappers of Nashville they were 110 a tire 120 for shipping they might have your size atleast you would have the rears covered but coast to coast you might not want caps but the cheapest 1000-20 I could find were 480 a piece with shipping plus tax good luck

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Yes tube type is not synonymous with bias ply. Tube type tires can be bias or radial. My guess is all tubeless tires at this point are radials. 24" tube type are still readily available but not common. As are 22" tube type but even less common. I just posed some links the other day to several 22" tube type tires that are available. MRF Chinese brand. Bridgestone still makes a 12.00-24 tube type radial. Its the model L317. its a beefy drive lug. Close to $1000 each. 

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2 hours ago, Geoff Weeks said:

Understand, when you do, you will loose road speed as well, 24" rubber is larger in diameter and has fewer Revs per Mile than 24.5" rubber.

I thought you said a crane operator had some on their equipment? Here 24" is scarce but obtainable.

Yes the crane company has 24.5s on  hub pilot rims.I'll keep looking.Guess Ireland is too small a market to stock odd tyres.Yip you do have to get good at sniffing out the unobtainable!!!.I understand the loss of speed and load carrying ability but this is a pure hobby truck,milage will be small.Thanks again.

Paul

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24 inch tires are getting very hard to find. 

a friend has been slowly converting his 8 trucks from 12-24 tires to 11/24.5.  tires are 1/4 the price. 

he has 6 done already and is collecting parts to finish the other 2. he still has 8 new 12-24 front runners and 16 or 20 12-24  recaps but they will be sold when he gets the other trucks converted. 

when you are up to your armpits in alligators,

it is hard to remember you only came in to drain the swamp..

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1 hour ago, cruiseliner64 said:

Yes the crane company has 24.5s on  hub pilot rims.I'll keep looking.Guess Ireland is too small a market to stock odd tyres.Yip you do have to get good at sniffing out the unobtainable!!!.I understand the loss of speed and load carrying ability but this is a pure hobby truck,milage will be small.Thanks again.

Paul

Can't you buy them elsewhere and have them shipped?

https://www.ebay.com/itm/276321827721?chn=ps&norover=1&mkevt=1&mkrid=711-166974-028196-7&mkcid=2&mkscid=101&itemid=276321827721&targetid=2274951440814&device=c&mktype=pla&googleloc=9007325&poi=&campaignid=22108121279&mkgroupid=181749026548&rlsatarget=pla-2274951440814&abcId=10162159&merchantid=114649931&geoid=9007325&gad_source=1&gclid=CjwKCAiAw5W-BhAhEiwApv4goG8JX_AQeMcpNbWrvPGG_BBzi8xxBffNh0EYLw70MK4JBq8ylN8h8hoCQS0QAvD_BwE

Screenshot 2025-03-03 124903.png

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JLL77da90e6-10ac-4d88-9234-b08d477bdb9a.jpg.b55e1a27d645db82071e44b9b8abb27d.jpg

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