Recommend Tire Pressure
Please recommend a tire pressure for my 5th wheel, tandem axle. Tire size is 235-80R-16 , Rating is E , Max pressure is 80 PSI. By actual scale weighing, the four trailer tires share a load of 8180 ...
Forum Discussion
The sise indicates ST tires wich are given maximum load for up to 65m/h.
then more deflection then a LT tire of same sises would have , wich is not in the market, comparable is LT 235/85R16 .
But to show why you can use 80 psi and still will have no bumping or centre wear , you can read next topic started by me.
In last posts even spreadsheet to make your own list and filled in with max/min load on tire
If then questions or you want me to help , ask it here.
Once read that tires are tested to can stand 2 to 3 times the AT-pressure ( yours E-load 80 psi) so even when filled with cold higher pressure , wich most brands allow up to 10 psi, at freesing point of water , and temp inside tire rises to boiling point of water , the tire wont reach that 2 to 3 times AT-coldpressure.
Not even when its in fact a D-load constructed tire wich is set in the market as E-load, wich I suspect is often done in America, to fullfill the American dream of bigger is better.
then more deflection then a LT tire of same sises would have , wich is not in the market, comparable is LT 235/85R16 .
But to show why you can use 80 psi and still will have no bumping or centre wear , you can read next topic started by me.
In last posts even spreadsheet to make your own list and filled in with max/min load on tire
If then questions or you want me to help , ask it here.
Once read that tires are tested to can stand 2 to 3 times the AT-pressure ( yours E-load 80 psi) so even when filled with cold higher pressure , wich most brands allow up to 10 psi, at freesing point of water , and temp inside tire rises to boiling point of water , the tire wont reach that 2 to 3 times AT-coldpressure.
Not even when its in fact a D-load constructed tire wich is set in the market as E-load, wich I suspect is often done in America, to fullfill the American dream of bigger is better.
