View Single Post
Old 10-08-2018, 08:39 AM   #29
Tireman9
Senior Member
 
Join Date: Sep 2018
Location: Akron
Posts: 459
Quote:
Originally Posted by Artizu View Post
Go buy 14 ply tires for your rig. I did and the trailer is much more stable and it will be much longer before the rubber breaks down to the point of failure.

The stock tires on an RV are cheap 6 ply tires and will only last 2-3 seasons.



You do realize that "Ply" went out in the 60's with the switch to higher strength Nylon, Polyester and finally to Steel in "Commercial grade" tires. If you read the tire sidewall you can learn the actual number of layers aka ply in your tires.
Load Range G or LR-G is the modern and correct term even though some tire companies use the "ply" designation as some customers don't understand we are really talking about the ability to retain the inflation pressure and it's the inflation pressure that supports the load not the tire itself. At least for 95% of the load. Else why Load & Inflation charts?


I have never seen a Ply vs load chart.
__________________
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.
Tireman9 is offline   Reply With Quote