Just curious how much pressure I should add to my single axle trailer tires. The sidewall reads 50 lb max. Any suggestions?
Trailer Tire Pressure??
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I have a dual axel trailer and usually run recommended pressures...
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Just reread your post...Tires don't have a recommended pressure? Trailer recommend pressure? Might want to do a test run with 35# and 45# !!!!!!!!!
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I would run 40 pounds in them and check them after about 50miles to see what pressure they have in them. And also put your hand on the tread and sidewalls and feel for excessive heat.
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If its a ST trailer tire they recommend to run them at max no matter what the weight, they are not like a car tire. The pressure is what holds their shape on trailer tires.
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If its a ST trailer tire they recommend to run them at max no matter what the weight, they are not like a car tire. The pressure is what holds their shape on trailer tires.
What does ST mean?
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ST = special trailer tire
Trailer Towing – ST Tires vs. LT Tires | RV 101® your education source for RV information
here is a link to explain it all and is very informing.
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ST = special trailer tire
Trailer Towing – ST Tires vs. LT Tires | RV 101® your education source for RV information
here is a link to explain it all and is very informing.
Interesting article...it said OK to run up to 10 psi over recommended pressure. Did they mean 10 psi over max pressure??? Most trailers don't have a recommended tire pressure sticker on them.
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What does ST mean?
Slingshot Trailer
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Interesting article...it said OK to run up to 10 psi over recommended pressure. Did they mean 10 psi over max pressure??? Most trailers don't have a recommended tire pressure sticker on them.
The article went on to say not to go over max pressure. So the question remains elusive still, exactly what would a recommended pressure be, or how calculated?
(I thought my initial inquiry was something simple. Now I feel better not knowing. As your teachers used to tell you, no such thing as a stupid question.)
It's a long trek for me to Maggie Valley, I just want to be safe. -
If it says max pressure, I always set it 5 pounds below that number cold. Loaded or unloaded, it will build up that 5 pounds over the trip of an hour or more. You don't want to run too low and stress the sidewalls while the tire builds up pressure, and you don't want to be at max cold, and end up overinflated (Unless the 50 psi also states 50 psi cold)
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15 inch trailer tires (ST) are normally set at 55psi for bias ply trailer tires.
Steel belted trailer tires (ST) are set at 65 psi
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Interesting article...it said OK to run up to 10 psi over recommended pressure. Did they mean 10 psi over max pressure??? Most trailers don't have a recommended tire pressure sticker on them.
It states if your going to pull over 65mph up to 75mph to go over max tire inflation by 10lbs, but you cannot go over the weight rating. if your WHEEL has a 65lb rating and max tire pressure is 65lbs then you cannot raise it 10lbs or drive over 65mph. remember there are wheel ratings and tire ratings.
I know from experience exceeding the 65mph in summer will likely cause a blowout on most st tires, its hard to go 65 when all the trucks are passing you by. I seem to speed up when Ive driven all day and getting a few hrs from the house and that's when it goes wop,wop,wop/
ALSO
I have been very happy with the MAXXIS ST M8008 from discount tire direct, they are radials and also come in E range that has a higher pressure and load rating for higher mph driving. highly rated with most trailer people. -
Get these to put on it.
I just installed them on my SS....it's hard to tell when a low profile tired loses air.
You could also fill the tires with nitrogen...
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I have not used a single axle trailer in long time. So I may be completely wrong with my pressure rating suggestion. I know on my tandem axle trailers I use a Goodyear Marathon trailer tire. And I run 40PSI in them. They usually gain 5psi after running them about 50 miles at 80 to 90mph. The only time I really overinflate them is when I'm really hauling somthing heavy. Its just to keep the sidewalls stiff and doesn't let them bulge.
That sidewall bulge seems to kill a trailer tire faster than anything. So it would seem to me that if you had 40psi in a single axle tire and it was visually bulged I would carry it on up to the max pressure of 50psi. And personally if it looked bulged I would go another 10psi past the suggested limit... after that you are just overloaded and in the danger area.
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I seem to speed up when Ive driven all day and getting a few hrs from the house and that's when it goes wop,wop,wop/
Maybe the tires are made in Italy
Agree on the Maxxis tires, had a trailer where I had tire problems and that solved it.
