Originally Posted by herk7769
Load range and plies are not accurate anymore. The number of plies depends on the material used to construct the ply. New materials allow manufacturers to keep the load range with less plies.
I have to respectfully disagree with you on this one. The load range is still the same as posted by the manufacturer and those numbers are current.
Today's load range/ply ratings do not count the actual number of body ply layers used to make up the tire's internal structure, but indicate an equivalent strength compared to early bias ply tires. Most radial passenger tires have one or two body plies, and light truck tires, even those with heavy-duty ratings (10-, 12- or 14-ply rated), actually have only two or three fabric plies, or one steel body ply.