Forum Discussion
jadatis
Sep 23, 2016Explorer
Many TT's have pressure advice based on GAWR( Gross axle weight rating), and if ST tires ( special trailer) the maximum load is calculated for 65m/h while most LT tires maximum load is calculated for 99m/h.
This means that ST tires have more deflection so more heatproduction then LT.
For these reasons its better to let me calculate an advice pressure for you , wich is probably higher then 50 psi.
If you have C-load tires ( probably because of 50 psi advice given) tiremakers dont allow higher pressure then 50 psi cold ( at 65/68 degr F), in earlyer days they allowed 10 psi extra.
To prevent overheating the 60 psi would be better for the tires in most cases , because mostly tires can yust bare enaug to carry the axle load together.
So in short , fill all up to 50 psi , mayby even 60 psi.
If you pressure device gives 60 psi , the real pressure can be, because of inacuracy , mayby even between 54 and 57 psi .
And this real pressure is what counts.
This means that ST tires have more deflection so more heatproduction then LT.
For these reasons its better to let me calculate an advice pressure for you , wich is probably higher then 50 psi.
If you have C-load tires ( probably because of 50 psi advice given) tiremakers dont allow higher pressure then 50 psi cold ( at 65/68 degr F), in earlyer days they allowed 10 psi extra.
To prevent overheating the 60 psi would be better for the tires in most cases , because mostly tires can yust bare enaug to carry the axle load together.
So in short , fill all up to 50 psi , mayby even 60 psi.
If you pressure device gives 60 psi , the real pressure can be, because of inacuracy , mayby even between 54 and 57 psi .
And this real pressure is what counts.
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