wc tire sizes
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Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=123666
Printed Date: 03 Sep 2025 at 8:49am
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Topic: wc tire sizes
Posted By: firecowallis
Subject: wc tire sizes
Date Posted: 22 May 2016 at 7:24pm
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i currently have steel on my wc and my back cant take it any more so i bought a set of round spokes i had always thought they had 24 in tires on them but they measure 27 in out side to out side across the center of the hub so what size tire do i order 12 -28 thanks for info u can give ------------- allis g 7045 200 wd45 wd45d c ca 6080 u |
Replies:
Posted By: irlbeck A-C'S
Date Posted: 22 May 2016 at 7:39pm
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You're correct 12x28 ------------- B,C,CA,(2)WC's,(4)WD's,(2) WD45'S, 45Diesel, (2)D12'S Series 2, D12 Hiclear,(2)D12 Series 3, HD3, D17NF (3)D17 Series 4 Diesels, M-100 Grader,8550,A few Lawn tractors lots of other AC stuff |
Posted By: Alberta Phil
Date Posted: 22 May 2016 at 7:48pm
| If you're measurement of 27 inches is outside to outside of the rim flange, then it's probably 24 inch outside to outside of where the tire actually seats on the rim. The inside to inside measurement should be about 23 1/2 for a 24 inch rim. A 28 in. rim is close to 31 in. outside to outside across the flanges. |
Posted By: irlbeck A-C'S
Date Posted: 22 May 2016 at 8:48pm
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Oops. Was in a hurry and didn't read you're question well enough. Completely missed the part about the round spoke rims and you're measurements. I was thinking about my WC's having 28in rubber. Phil is correct with the outside measurement of a 28in rim being nearly 31in. ------------- B,C,CA,(2)WC's,(4)WD's,(2) WD45'S, 45Diesel, (2)D12'S Series 2, D12 Hiclear,(2)D12 Series 3, HD3, D17NF (3)D17 Series 4 Diesels, M-100 Grader,8550,A few Lawn tractors lots of other AC stuff |
Posted By: Gerald J.
Date Posted: 22 May 2016 at 9:32pm
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A rim has three diameters. The center where the spokes are welded is dropped to allow putting the tire with wire in the beads in place without taking the rim apart. Then there are the two bead seats that are actually angles. The flat ones are the tire diameter, then the flanges set the tire bead width. In the old days that was the width on the tire, now the tire width number is the maximum width of the tire which is wider than the bead to bead distance. The outside diameter of the rim is the top of the flanges and should fit the tire bead shape, but isn't a number on the tire. Tire manufactures put out handbooks with tables of the rim and tire dimensions. One of the handiest ones is from Titan/Goodyear and can be found with a search for Titan/Goodyear Ag Tire Handbook. Gerald J. |
Posted By: dawntreader74
Date Posted: 22 May 2016 at 10:20pm
| i have lots of spoke wheel wc'' tractors. all of them are 24'' s. have a few with 14.9s' looks good. later ones with bullet tank went to cast center wheels 28 inches 13.6x28 |
Posted By: firecowallis
Date Posted: 23 May 2016 at 8:02am
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so order 14.9 x 24 tires am i reading this correctly ------------- allis g 7045 200 wd45 wd45d c ca 6080 u |
Posted By: Larry B
Date Posted: 23 May 2016 at 9:28am
| I have a wc with 28" round spokes too. |
Posted By: firecowallis
Date Posted: 23 May 2016 at 11:26am
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so could the rims i have be wrong ones maybe for a uc ? ------------- allis g 7045 200 wd45 wd45d c ca 6080 u |
Posted By: CAL(KS)
Date Posted: 23 May 2016 at 11:31am
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UC has bigger bolt pattern, not the same ------------- Me -C,U,UC,WC,WD45,190XT,TL-12,145T,HD6G,HD16,HD20 Dad- WD, D17D, D19D, RT100A, 7020, 7080,7580, 2-8550's, 2-S77, HD15 |
Posted By: Alex09(WI)
Date Posted: 23 May 2016 at 1:08pm
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I have a 36 wc with flat spokes that has 28" rim on the back. I think the 28" spoked rims were steel cut-offs.
------------- www.awtractor.com A&W TRACTOR 920-598-1287 KEEPING ALLIS-CHALMERS IN THE FIELDS THROUGH THE 21ST CENTURY |
Posted By: CTuckerNWIL
Date Posted: 23 May 2016 at 1:41pm
Yes, flat spokes are steel wheels cut down. Original wheels with either flat or round spokes were never welded to the steel wheel or rim. tire size has to match rim diameter and the rim diameter is NOT measured across the outside diameter.  ------------- http://www.ae-ta.com" rel="nofollow - http://www.ae-ta.com Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF |
Alex09(WI) wrote:Posted By: Gerald J.
Date Posted: 23 May 2016 at 1:46pm
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To me 14.9 seems a bit wide though that is the size on my MF-135. Measure the distance between the flanges and go to the ag tire handbook and the table on recommended rims. Mine says the recommended rim for 14.9-24 and 14.9-28 is 13", but 12" is also approved. For 14.9-26 only 12" widths are recommended and approved. Long ago I had an 8N with 14.9 tires on rims a bit narrow and when those tires were old and gray and hard it took a tire guy with lots of power tools a whole afternoon to replace them. I suspect your rims are more like 11 inches and the tire that fits best is a 12.4. Gerald J. |
Posted By: Gary Burnett
Date Posted: 23 May 2016 at 3:20pm
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I have a WC with 36" round spokes |
Posted By: AaronSEIA
Date Posted: 23 May 2016 at 7:20pm
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I've seen WC's with 12.4 on them and they look way too small. A 14.9 "balloons" a bit much on the stock rim, but really looks the best of everything out there. I think a 13.6x24 would be perfect. AaronSEIA |
Posted By: Thad in AR.
Date Posted: 23 May 2016 at 7:22pm
| You have 24" rims. I just measured mine and they measure 27" as well outside to outside. Mine have 14.9 24's on them. |
Posted By: CTuckerNWIL
Date Posted: 23 May 2016 at 8:02pm
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A 12.4 looks anemic on a WC. 13.6 not bad but a bit narrow in my opinion. A 14.9 is the same size tire that came on many of the WC's. Just might have been marked as a 13-24 or 11.25-24. All the same size tire mounted on 8 to 13 inch rims. ------------- http://www.ae-ta.com" rel="nofollow - http://www.ae-ta.com Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF |
Posted By: firecowallis
Date Posted: 23 May 2016 at 8:14pm
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re measured my rims and they are 10 in wide and 27 in tall and they are not cut offs factory round spokes i the guy i got them from says they had 28s on them but like i said i thought they should have had 24 s just really confused ------------- allis g 7045 200 wd45 wd45d c ca 6080 u |
Posted By: firecowallis
Date Posted: 23 May 2016 at 8:15pm
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thanks for all the help ------------- allis g 7045 200 wd45 wd45d c ca 6080 u |