Michelin tire blow out!!
On a recent trip to the Western end of the Florida panhandle, we had a blowout on the right rear inside tire. Luckily it was on a straight section of Interstate Hwy with very wide and flat shoulders a...
Forum Discussion
Yes road crown and other factors can affect actual tire loads on duals.
Reason single vs dual tire psi/load ratings are different.
Effective in 1999, the Tire and Rim Association (TRA), which sets standards for load and inflation, decided to change the old system.
In early days, tires didn’t have different loads for single and dual use. Everybody assumed they would be the same. But, over time, manufacturers realized that the actual load on each tire in a dual assembly is rarely the same.
For one thing, the tires may not be equally worn.
If there’s a big difference in wear, there’s a difference in overall diameter.
The larger tire will carry more of the load.
Road crown also affects load. The inner tire of a dual assembly can be more heavily loaded than the outer one.
And, there are factors like camber that can also make the loads shared by the tires in a dual assembly different from each other.
Loads for tires in dual assemblies are set lower because the tires may not be loaded the same.
Unequal wear can cause unequal loads.
Road crown may put more load on the inner tire.
Excessive camber can cause unequal tire loading.
There is a lot going on with them dual wheel assemblies.
Reason single vs dual tire psi/load ratings are different.
Effective in 1999, the Tire and Rim Association (TRA), which sets standards for load and inflation, decided to change the old system.
In early days, tires didn’t have different loads for single and dual use. Everybody assumed they would be the same. But, over time, manufacturers realized that the actual load on each tire in a dual assembly is rarely the same.
For one thing, the tires may not be equally worn.
If there’s a big difference in wear, there’s a difference in overall diameter.
The larger tire will carry more of the load.
Road crown also affects load. The inner tire of a dual assembly can be more heavily loaded than the outer one.
And, there are factors like camber that can also make the loads shared by the tires in a dual assembly different from each other.
Loads for tires in dual assemblies are set lower because the tires may not be loaded the same.
Unequal wear can cause unequal loads.
Road crown may put more load on the inner tire.
Excessive camber can cause unequal tire loading.
There is a lot going on with them dual wheel assemblies.
