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Tractor Pulling Discussion Forum

Tire square inch

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mshultz

12-08-2006 12:23:26




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Wondering if anyone can give a little info on tire square inch patterns for:

20.8 x 34
13.6 x 36
13.9 x 36
14.9 x 36
12.4 x 38

Any help is appreciated.




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Lamont

12-09-2006 18:43:30




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 Re: Tire square inch in reply to mshultz, 12-08-2006 12:23:26  
Radial Dimensions. I repeat RADIAL Dimensions. Bias ply will run much less. For instance, compare a 15.5 x 38 Firestone Field and Road with 189 sq. in. to the 14.9 x 38 Radial below at 235 sq. in. This is the best I could do.

20.8 x 34 350 sq. in.
13.6 x 36 200 sq. in.
13.9 x 36 210 sq. in.
14.9 x 36 235 sq. in.
12.4 x 38 228 sq. in.



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Jerry Cent. Mi.

12-08-2006 15:23:35




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 Re: Tire square inch in reply to mshultz, 12-08-2006 12:23:26  
Some sizes are on the NATPA web. site.



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dave in MN

12-08-2006 15:16:47




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 Re: Tire square inch in reply to mshultz, 12-08-2006 12:23:26  
go to the firestone ag tire web site



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mshultz

12-08-2006 17:58:33




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 Re: Tire square inch in reply to dave in MN, 12-08-2006 15:16:47  
I looked around there and couldn't find the chart. Also looked on the NATPA site and these sizes weren't there. the NATPA site mentions that their numbers are from the Firestone Field and Road size chart. I don't think they make that model tire anymore, so maybe they took it off their site?? I know I was able to find it a few years ago, but I can't find it now. Maybe I'm overlooking it somewhere?? I'm thinking that the tires I'm trying to get the info for weren't made in a field and road - maybe why they're not on the NATPA site??

Thanks for any help!

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dave in MN

12-08-2006 20:09:54




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 Re: Tire square inch in reply to mshultz, 12-08-2006 17:58:33  
look in www.firestoneagtire.com

then look under the ag tire dimensions



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42Farmall

12-08-2006 19:55:00




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 Re: Tire square inch in reply to mshultz, 12-08-2006 17:58:33  
The info is on one of the NATPA class rules pages. Division 2 or 3 I think.



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