Tire size

[Ruffasacob]

I want to put turf tires on a 63' Loboy. There's a set near me, but they are 14.9 x 24. Pretty fat.
Would they fit on my 7" ( I think ) rims? I have 8.3 x 24's now.
Would I still have all the adjustments of wheel width? Probably not.
The price is right, $75. That's why I'm even thinking about it.
What's the biggest tire that will still work with all width adjustments?
Thanks, Ruff

[Barnyard]

9.5's are about the biggest you want to put on your Cub, but I would use a bigger rim. You definitely don't want those 14.9's on your 7" rim.

[Yogie]

Sorry to say but that way over size for a cub, even to big for a SA....
Would look good but it would probably do good to pull itself.

[tulalipjames]

Replaced 9.4 x 24 with 12.4 x 24 tires with no problem. Look powerful, work powerful, especially filled with liquid.

[danovercash]

Use numbered LoBoy rims.

[CapeCodCubs]

You'll barely get 9.5's on 7" rims. The narrow rim is a pain to get the tubes down so they don't get pinched.

[Arizona Mike]

The big tires might look powerful, but the thinner tires actually provide better traction and are a lot easier for me to get up close to things when mowing. I have one set of 8.3's on my '57 but they too big imo.

[rjf7r]

Is it bad (other than for appearance) to have different size tires on the rear of a Cub?

My 1955 Cub came with 8 x 24 tires, but one of them has rotted to the point of unusability (and no air retention in the tube, and no likelihood that a replacement tube would last long).

My tire guy (admittedly a car and truck person, but in a rural area so he sees tractor tires too) said he could only get 9.25 x 24 tires at a reasonable price. I said OK and now I have that tire on one side of my Cub.

The problem, as I'm sure all of you anticipated but I didn't, is that that tire is almost three inches in diameter bigger than the original. The Cub is lopsided, about one and a quarter inches higher on that side, which is OK by me since hardly any of our land is level anyway! (It was lopsided when the tire was flat, too.)

However, I was wondering if this difference in circumference puts some sort of strain on the drive system? Obviously, when going straight ahead, the two tires are rotating at a different speed. We never go on hard surfaces, only grass and dirt.

Is it damaging the tractor to use different diameter rear tires?

Bob

[John *.?-!.* cub owner]

Immediately damaging? No, but it does put a lot of extra wear on your differential. That should not be a problem for many years, unless it has a problem anyway. I have a Howard Despeeder that was sold to go with their tiller, and it reduces the speed of one side by about one half or more and it has not created a problem so it should be ok for a long time.

[rjf7r]

well, I do plan to replace the other tire eventually, but cash is lacking right now.

[Scrivet]

With one tire bigger and your Cub "lopsided" but leveled out on the hills I would be more concerned about when I turned around to come home than doing damage to anything. With the unequal tires the rear end thinks you are constantly making a turn. To bad the IH engineers never considered someone would want to make a turn when driving their Cub. I know there'll be someone along to give the "more wear on the differential" speech soon. Personally I lump that one right up there with the "gotta have lock outs on the front" so you don't wear out the front drive train on a 4x4. REALLY? The back axle does just fine and it runs all the time.
They're both machines, they're gonna eventually wear out. I don't think it's worth the worry whether it's in 20 years or 21 years. Use it, drive it, and enjoy it. Put the other new tire on it when you can.

[Eugene]

I was wondering if this difference in circumference puts some sort of strain on the drive system? Is it damaging the tractor to use different diameter rear tires?

No damage or additional strain on drive train using different sized rear tires. If you measured up the circumference of two identical sized rear tractor tires, one will be larger than the other.

Short answer, the purpose of the differential is to permit one rear wheel to turn faster or slower than the opposite side. Even when driving straight ahead, one wheel is revolving a bit faster than the other.

[Boss Hog]

The late models came standard with 9.5 on them on 7 in rims. That is the largest size tire that will work as it should on a cub.
Boss

[cowboy]

I have 14.9x24's on one of my 130's. It noticeably increased the ground speed and height of the tractor in fact it kinda looks like a 60's drag car. Its really too much tire for the 130 and would really be too much for a cub as a taller tire needs more torque to turn them. But that tractor will really go though the mud. I am running 9.5x24 on my cub.





Billy