(800) 853-2651
SHOP NOW

Tractor Tires

P

Patsdeere

Well-known Member
A friend asked me to find something for him. He is looking for 11.25x40 tires for a oliver 80. I didn't know they came in .25 measurements. Any idea where I might find some tires? I need 2 as the one he has are shot - hole in side.

Or is there another size rim that we can put on it? It has the cast hubs, so I am not thinking this is too likely.

Thanks.
 
The 40" part is the problem. The 11.25 is part of the orignal numbering system that started back in the 30's. It would have changed to something like 13 or 15 and would now be 14.9 or 16.9? or perhaps 18.?
 
They don't seem all that wide so they probably are a 12.4 or 13.6 max now.

I know the 40 in is the killer part. If you can't find that size what do you do? Put it up on blocks?? or scrap it?
 
A 9.5 tire would be way small, like putting the throwaway spare on your car. A 7:50 would have become a 8 that is by current sizes a 9.5 and the difference in cross section height from the 11:25 from the 7:50 is right at 4" per top and bottom of tire so that would be about 8" too small in diameter.
 
12.4 came from 11 that came from 9:00, 13.6 came from 12 that came from 10:00. The 8:00 is now the 11.2. So figure 10 to 13.6 that is about 3.5" so add the 3.5 to the 13.6 and you will come up with about 17.1 so the 16.9 would be the closest size by measurements. I know there will be a difference due to converting ways of measure but this is about as close as you cam come without a chart. And I just talked with the young man that works in the farm tire division of a local tire holesaler and he said he has that chart and would get me a copy.
 
You must log in or register to reply here.

Similar threads

E
Wider Rims/Tires for Ford 2000
Replies
19
Views
790
sotxbill
S
K
MF 540 combine
Replies
4
Views
782
Mirza99
M
K
MF 1020 wheels and tires
Replies
0
Views
103
kenziew
K
T
Where to buy a rim for trailer?
Replies
14
Views
1K
Tractorcedric
T
T
What do you recommend?
Replies
7
Views
435
Destroked 450
Destroked 450
Tractor Parts Tractor Manuals

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.

Copyright © 1997-2024 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters
Website Accessibility Policy

Back
Top