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Tireman9 · 06-27-2022, 12:36 PM

While this suggestion is not a guarantee I believe it might help some people avoid tire problems on their RV trailer.
Read the material list molded on the tire sidewall. You will see the actual number of "ply" or layers of different material. Sidewall will probably be 1 layer of Polyester.
The more important info is on the tread. 2 layer of steel + 1 layer of Polyester (same as in the sidewall) PLUS 1 or 2 layer of Nylon. The Nylon will help address the Interply Shear forces placed on the belts in trailer application.
If it were me, I would ALWAYS select tires with Nylon cap ply in the tread over a tire with no Nylon but only the body ply + 2 layer of steel.

06-27-2022, 12:36 PM	#33
Tireman9 Senior Member Join Date: Sep 2018 Location: Akron Posts: 458	While this suggestion is not a guarantee I believe it might help some people avoid tire problems on their RV trailer. Read the material list molded on the tire sidewall. You will see the actual number of "ply" or layers of different material. Sidewall will probably be 1 layer of Polyester. The more important info is on the tread. 2 layer of steel + 1 layer of Polyester (same as in the sidewall) PLUS 1 or 2 layer of Nylon. The Nylon will help address the Interply Shear forces placed on the belts in trailer application. If it were me, I would ALWAYS select tires with Nylon cap ply in the tread over a tire with no Nylon but only the body ply + 2 layer of steel. __________________ Retired Tire Design Engineer (40 years). Serve on FMCA Tech Advisory Committee. Write a blog RV Tire Safety. Read THIS post on Why Tires Fail.