confusion on psi on TT

[BGMAC]

BGMAC, we can meet the end of Sept. We are going to the annual canards fly-in at Rough River KY ?

We will be in Ky 11-15th of Sept. for a military reunion. A group of us stationed in Germany try and meet every year at different places. This time near Barron River Lake. I’d like to see some of those aircraft.

 

[Buly]

The canard fly-in at Rough River airport 2I3, in the Falls of Rough River, Kentucky. - Canard Owners and Builders Association

www.canardowners.com

 

[John&Andrea]

Under inflated tires will have more resistance and heat up quicker, possibly leading to failure. Right?

 

[Buly]

John, you are right.

 

[Bob K4TAX]

Going over the numbers, our trailer's gross weight is 7685 lbs. With 4 tires under this trailer, this says the load is expected to be 1921 lbs per tire. The difference between the dry weight of 5715 lbs and the gross weight of 7685 is 1970 lbs. This is cargo weight, thus the allowable weight for any and everything added to the trailer. Such as battery, 2 x LP tanks, chairs, folding table, portable grill, leveling blocks, chocks, toolbox, and all the "stuff" we carry in the trailer.

The original tires were load C rated, thus a maximum 1600 lbs at 55 PSI. Clearly, the original tires WERE NOT rated to carry the maximum load of the trailer!

The new tires are load D rated. Per the manufactures data, they are rated for 2040 lbs at 65 PSI. That provides about 8160 lbs of total tire weight rating.

A point to note, changing to higher load-rated tires DOES NOT increase the maximum load rating of the trailer. That is defined by the axle rating used for the trailer. A pair of 4000 lb axles can safely carry 8000 lbs, regardless of the tire ratings.

Please check your trailer's gross weight rating and your tire's maximum load rating. Overloading tires are a sure formula for major issues. And as the tire manufacturer states for ST style trailer tires, always cold inflate to the maximum pressure to carry the maximum load.

Tire wear, surface contact, and ride are not as important as proper weight rating and inflation. If the tires are the correct size, weight rating, and inflation, none of the issues of tire wear, surface contact, or ride will be affected.

If you have had tire failure at any time, you best look at the numbers. Overloaded tires and under-inflated tires are the major cause of tire failure. Tires over 5 years old from the date of tire manufacturer are subject to dry rot and should be replaced regardless of appearance.

Remember, the strength of a chain is defined by its weakest link.

 

[sanda]

If you have had tire failure at any time, you best look at the numbers. Overloaded tires and under-inflated tires are the major cause of tire failure. Tires over 5 years old from the date of tire manufacturer are subject to dry rot and should be replaced regardless of appearance.

Also check manufacturer location. I see a lot more tire problems with China made tires.

 

[Bob K4TAX]

If you have had tire failure at any time, you best look at the numbers. Overloaded tires and under-inflated tires are the major cause of tire failure. Tires over 5 years old from the date of tire manufacturer are subject to dry rot and should be replaced regardless of appearance.

Also check manufacturer location. I see a lot more tire problems with China made tires.

Michelin's headquarters is in France and has 2 factories in China. They are also manufactured in South Carolina and Alabama.

Bridgestone's headquarters is in Japan and has 6 factories in China. They are also manufactured in the US. My father-in-law, now retired, was the manager of their US plants.

Continental's headquarters and tires are made in Germany.

Goodyear's headquarters and tires are made in Ohio.

Here is good information about Chinese tires.

NEUMATICOS CHINOS: LA VERDAD SOBRE SU CALIDAD

NEUMATICOS CHINOS - MITOS Y VERDADES El mercado de los neumáticos, como el de casi cualquier otro, está plagado de fabricantes chinos que ofrecen sus productos a un precio inferior al de las marcas de mayor prestigio. Pero, ¿realmente merece la

www.in2tires.com

As I cited in my earlier post, our FR Wildwood came from the factory with tires that were NOT rated for the maximum load of the trailer. Likewise, if someone had a tire failure of the original tires, is it the tires, or the TT manufacturer? As I found on our TT, the tires were underrated!

I would check and verify data before making general statements. Someone might think it is the truth.

 

[John&Andrea]

I think you are on track. Stepping up to a higher load range is a good move. I did the same thing years back on our fifth wheel and we never had another problem. I think replacing tires at 5 years is a idea. Hard to do sometimes but may save a problem on the road.

 

[BGMAC]

if you still have issues, I would also check axle alignment. I had an issue with that on a triple axle 5th wheel one. I kept blowing tires which ended up being the alignment causing the problem.