Tire replacement upsize

[deepNdirt]

Well its time to replace the rear AG tires on my 1700,
Yesterday I had a rear flat, I've been expecting this to happen for some time due to the tires being dry-roted, When attempting to re-inflate the tire I notice it to be a bit narrow for the rim, or at least seem difficult to blow the tire back out to the rim even with using 150 psi of air pressure, I manage to get it inflated and found it leaking from 2 dry rotted cracks, not going to bother trying to fix the tire, I found these tires are tubeless which i thought was odd had I known this I might not have been brush cutting through thorns & brier patches..... So Now I'm thinking should try and use the next size larger tire from 8.3 x 24 to---> 9.5 x 24 my thinking would be that a wider tire would keep it seated to the rim better, especially them being tubless,.....
Has anyone else up-sized their tires using the same rim size?
Hoye has the best deal and will most likely be ordering them soon, as I'm out of commission until I get them replaced,

 

[284 International]

150 PSI!?!?! I'm glad we've still got you around......


Firestone's website calls for an 8 inch rim on the 9.5 rather than a 7 inch rim on the 8.3s.

You'll probably be ok, but I haven't tried it. The 9.5s are a bigger tire all around than the 8.3. You can see a (literally) side by side comparison on my dual adapter thread.

 

[deepNdirt]

The comparison shows quit a bit of difference, although I've always though the 8.2 looked to be small for the 1700 a bit larger tire would be OK,
I found that I might have another option.... a local man has a new set of 11.5 x 24 AG tires mounted on 6 bolt Kubota rims, does anyone know if these are a direct bolt on? He suggest that if didn't fit the Yanmar, I could have them re-drilled between each existing lug hole to fit the Yanmar,
Although I'm just wondering if the cost of re-drilling would be worth investing on top of the price of ( 175.00 each ) for the wheel/tires?
does anyone know the overall hight of a 11.5 x 24 tire, would there be an even greater difference in hight compared to the 8.2 size?

 

[shawnjvl]

I did a bunch of googling on this about 1 year ago. Best prices I found.
TireTown Rear Farm New Tires

 

[284 International]

Deep-I'll get a picture for you this afternoon/evening of all of those tire sizes side by side. I think California has that size tire on his YM240. They look big. They might be another size up though:

My IH 284 has 11.2x24s, and the YM2000 has the other set.

I think California's YM240 used the Kubota rims, however, my whole episode of making dually spools started out because the Kubota rims I had wouldn't fit onto my YM240. I don't know what model they were from or anything. They could have been a Kioti for all I know-they were orange, and the guy said they came off a Kubota.

One thing to check on is that the Yanmar, Kubota and Mitsubishi tractors I've seen are all hub-centric wheels, so the hub actually centers the wheel, and the wheel studs just clamp the tire on and transmit torque. The hubs on the ones I've seen don't match. Hopefully California will chime in and fill us in on what he knows about his rig.

Eyeballing it, my YM240's lug pattern was 6 on 5.5" or the same as Chevy/Toyota 4x4 rims. I haven't tried any on yet though. If you find out any of the measurements or lug patterns, and can find out what the Kubota rims are, and what they came from, let us know. It would be nice to start building a reference table.

 

[284 International]

As promised, here's a side-by-side-by-side comparison:

The YM2000 has a 9.5x24 rice tire. In between (it's off the spool, but the spool is still mounted on the tractor) is the 8.3x24, and the biggest one is my 284 with 11.2x24 inch tires.


I haven't priced tractor tires in a long time, but if a guy had a set of new ones for $175 each, I'd be awful tempted. The tires alone will be about that, and even if you got $50 for the rims, that's still only $300 for a set of tires. Maybe I'm off in my estimates, but I am virtually positive it would cost me nearly double that around here, especially mounted. I'd ask if he would do the deal in cash, and have him mount them on your rims if they won't just swap directly over. They may be too much bigger though, and require the larger rim anyway. It's worth looking at though.

 

[California]

That's my green YM240 (YM2000) a couple of posts up this thread. The orange rims are obviously off a Kubota. They fit correctly on the original Yanmar center discs. The tires are 12.4x24. I think the original tires on this tractor were 9.5x24, the larger of two listed choices.

I wouldn't be surprised if Yanmar-USA and Kubota-USA both sourced their tires, wheels and discs from US suppliers back in the day, maybe from the same supplier. (I know that my US-made backhoe was sold as 'OEM' by both Yanmar and Kubota dealers with the only difference being the paint and labels). So I don't know if any of my info is applicable to the gray market versions.

$175 each, mounted? Just do it. It would be worth the cost to re-machine the wheels if needed to make them fit.

A tire that much oversize will have you running in a lower gear than before. But my low-2 is the still lowest I use for practical work. Even with these oversize tires, low-low is still so low that I never use it except to creep up to engage a pallet with my pallet forks.

This picture better shows the separate disc/rim design on the US Yanmars. (And Kubota apparently).

 

[284 International]

California, I should have made it more clear that I robbed your picture. Sorry. I got it from here.

Normally I try to make it explicit where I get information, diagrams, or images. Again, I apologize.

I think if I ever have to replace the tires on my 284 I'll go with that next size up, a 12.4x24.

California, as I understand it, took the Kubota tire and wheel rim and put it onto his square Yanmar center section, which lines up with the bolt pattern on the Kubota rim. Since you have the rims with the bolt-in centers, you should be good with those Kubota rims if they are of similar design.

 

[California]

California, I should have made it more clear that I robbed your picture.

No offense! I already thought you were clear that you were mentioning my photo as an example.

California, as I understand it, took the Kubota tire and wheel rim and put it onto his square Yanmar center section, which lines up with the bolt pattern on the Kubota rim.

Exactly. Well, a prior owner.

 

[deepNdirt]

as the old cliché goes, "if its sounds too good to be true" _ _ _ _ _ _ _ _ _
I went to look at the tires today and the man was mistaken, the tires were 14.5 x 24 and the rim bolt hole pattern was 7" on center, with a center hole of 5 1/2 inches, I realize the tires alone are worth his asking price although would be way too large of a tire for my rims, so I guess I'm back at
finding some 9.5 x 24's I measured the width of my rims and they are 8" wide, so would this 1.5 amount wider tire work OK on a 8" rim?