Example 7.00-17 or 700-17 means the rim is 17 inch under the lip
The diameter of the hole in the tire rubber is 17 inches
The 7.00 or 700 means the wall of the tire is 7 inches
With these numbers you now know the diameter of the tire
The plies is also in the tire spec and listed on the rubber
8 ply is a common work tire good for 2500-3000 lbs per tire with appropriate pressure
I’ve also seen 10 ply
And sometimes modern tires list “ply equivalent”
Because the tires aren’t made the same anymore internally but they want you to know easily what to compare it to in the old books
I usually stick to max load specification anyway and ignore the ply or equivalent ply numbers
For my 1 ton I made sure to get a load rating over 3000 lbs as I fill that thing up till the auxiliary springs are nearly bottomed out sometimes
Check out Sampson brand tires if you want actual tube type non radial for split rims and actual work load rated capacities
Last edited by 2ManyTrucks; 03/24/2020 10:28 PM.
