Proper Tire Pressure...
I am changing all my tires on out 5ver from STs to LTs. I have looked for an answer to my question but to no avail, so I will try here, you have all been helpful in the past. I'm going to put 80l...
Forum Discussion
To my experiënce an LT tire ( Me living in Europe calling it C(omercial)-tyre) can have a livetime of 6 to 10 years.
Last year we hired a motorhome ( Hymer 3100kg/6800lbs gvwr) with A-brand tires and because it was the first time the people rented it
They asked that if something was missing or not ok us to let them know.
The tires I ofcource checked and only one had the DOT code with the production week and year on the outside , so asumed the others to be of same production date. Apeared to be 10 years old but enaug profile and I could see no cracks. In the time it was used ( build about 1998 so old) pressure advice on the papers was 4 bar all around ( 59psi).
I calculated with my spreadsheet for absolute savety going from the gawr's that 4,8bar/70psi rear and 4bar/59psi front.
The motorhome tires where at 3.5bar/51psi when I measured it at home so pumped them to a good 4 bar front and 4.5 bar behind ( with bicicle pump) and did about 3000 km/1300miles And made it to Pisa Italia Toscane and back with no tire problems.
I adviced them to put new tires on for savety, and they where suprised by the age of them.
If ST tires they have more deflection when you calculate the needed pressure with the conventional or my formula so they last shorter then LT . I have read of 3 years adviced to chanche them.
To my opinion an ST is not a better tire for a trailer but a lower quality.
Its like a painters quality door we once had placed and thougt it was even a beter quality then a normal door, yust by the name of it. But you had to paint it to cover the bad spots so even was a lower quality door.
So my answer to 'Me Again 'about me thinking the LT here was only slightly better then ST is that thoug the given maximum load of the LT is lower then the given maximum load of the ST . it is still sertainly not a worse tire, wich you would expect if you only compare the maximum loads .
Mayby because ST tires dont have to last that long, they even put less stuff in it to make them last longer , and this makes the difference in savety and livetime even more.
Last year we hired a motorhome ( Hymer 3100kg/6800lbs gvwr) with A-brand tires and because it was the first time the people rented it
They asked that if something was missing or not ok us to let them know.
The tires I ofcource checked and only one had the DOT code with the production week and year on the outside , so asumed the others to be of same production date. Apeared to be 10 years old but enaug profile and I could see no cracks. In the time it was used ( build about 1998 so old) pressure advice on the papers was 4 bar all around ( 59psi).
I calculated with my spreadsheet for absolute savety going from the gawr's that 4,8bar/70psi rear and 4bar/59psi front.
The motorhome tires where at 3.5bar/51psi when I measured it at home so pumped them to a good 4 bar front and 4.5 bar behind ( with bicicle pump) and did about 3000 km/1300miles And made it to Pisa Italia Toscane and back with no tire problems.
I adviced them to put new tires on for savety, and they where suprised by the age of them.
If ST tires they have more deflection when you calculate the needed pressure with the conventional or my formula so they last shorter then LT . I have read of 3 years adviced to chanche them.
To my opinion an ST is not a better tire for a trailer but a lower quality.
Its like a painters quality door we once had placed and thougt it was even a beter quality then a normal door, yust by the name of it. But you had to paint it to cover the bad spots so even was a lower quality door.
So my answer to 'Me Again 'about me thinking the LT here was only slightly better then ST is that thoug the given maximum load of the LT is lower then the given maximum load of the ST . it is still sertainly not a worse tire, wich you would expect if you only compare the maximum loads .
Mayby because ST tires dont have to last that long, they even put less stuff in it to make them last longer , and this makes the difference in savety and livetime even more.
