Cooper Tires Chart--load verses psi

[ForBruce]

i have enclosed a chart for the tires that come on the solitude.

but i do have questions concerning it .

My trailer loaded has a rear wheel weight of 13,460 lbs . If i divide by 4 tires the weight on each is 3,365

But we know that is not true; as the left and right side are not the same .

The refrigerator weighs about 425 loaded and the stove is about 150lb. The pantry loaded is about 150 lbs..... all together 725lb extra on passenger side of the trailer.

So What tire pressure ,according to the chart below would you set the tire to and why ?

[ajg617]

Interesting question. As delivered, ours is 600lbs heavier on the street side to start with empty. Add pantry items, dishes, etc. and that goes up. The washer/dryer is on the curb side and I try to load heavier pass-thru items on the curb side as well but I know I'm still heavy on the appliance side. I've been keeping all at 125 cold. What I noticed during travels last year was that curb side tire pressure and temps were higher at interstate speeds than street side. I suspect some of that is due to slight crown in the roadway but really not sure.

[Gronk1]

[QUOTE=ajg617;472739]Interesting question. As delivered, ours is 600lbs heavier on the street side to start with empty. Add pantry items, dishes, etc. and that goes up. The washer/dryer is on the curb side and I try to load heavier pass-thru items on the curb side as well but I know I'm still heavy on the appliance side. I've been keeping all at 125 cold. What I noticed during travels last year was that curb side tire pressure and temps were higher at interstate speeds than street side. I suspect some of that is due to slight crown in the roadway but really not sure.[/QUOTE]

The temps & pressure on mine will increase on whichever side the sun is shining on.

[ajg617]

[QUOTE=Gronk1;472751]

Interesting question. As delivered, ours is 600lbs heavier on the street side to start with empty. Add pantry items, dishes, etc. and that goes up. The washer/dryer is on the curb side and I try to load heavier pass-thru items on the curb side as well but I know I'm still heavy on the appliance side. I've been keeping all at 125 cold. What I noticed during travels last year was that curb side tire pressure and temps were higher at interstate speeds than street side. I suspect some of that is due to slight crown in the roadway but really not sure.[/QUOTE]

The temps & pressure on mine will increase on whichever side the sun is shining on.

That also but last year at least half of our travel days were in rain or cloudy weather.

[Hoopy Frood]

Well, you definitely got the tires to handle the weight. I think I would start at max inflation pressure, put things on the countertop, preferably non-breakable, and see how they ride. And also consider how the trailer feels over rough roads and bridge approaches. If things get thrown around I'd lower the pressure until things started riding better and the trailer towing felt better. You may find the it tows just fine at max pressure.

[Calbar]

i have enclosed a chart for the tires that come on the solitude.

but i do have questions concerning it .

My trailer loaded has a rear wheel weight of 13,460 lbs . If i divide by 4 tires the weight on each is 3,365

But we know that is not true; as the left and right side are not the same .

The refrigerator weighs about 425 loaded and the stove is about 150lb. The pantry loaded is about 150 lbs..... all together 725lb extra on passenger side of the trailer.

So What tire pressure ,according to the chart below would you set the tire to and why ?

I have been running my tires on my 378MBS at 110PSI. I did a calculation on axle weight with one side being heavier and then added 25% margin to come up with the 110PSI. I prefer to err on the safe side and if there is more than 4400 lbs on one tire then I will have bearing issues as well.

Rob

[ForBruce]

I have been running my tires on my 378MBS at 110PSI. I did a calculation on axle weight with one side being heavier and then added 25% margin to come up with the 110PSI. I prefer to err on the safe side and if there is more than 4400 lbs on one tire then I will have bearing issues as well.

Rob

exactly---i run mine at 110 -112lb cold.. glad to know i am not the only one

[LMagelitz]

exactly---i run mine at 110 -112lb cold.. glad to know i am not the only one

I do also…110 cold.

[Malco1]

exactly---i run mine at 110 -112lb cold.. glad to know i am not the only one

I run mine at around 120. If they are 118 or 122, for me that's good enough.

[huntindog]

i have enclosed a chart for the tires that come on the solitude.

but i do have questions concerning it .

My trailer loaded has a rear wheel weight of 13,460 lbs . If i divide by 4 tires the weight on each is 3,365

But we know that is not true; as the left and right side are not the same .

The refrigerator weighs about 425 loaded and the stove is about 150lb. The pantry loaded is about 150 lbs..... all together 725lb extra on passenger side of the trailer.

So What tire pressure ,according to the chart below would you set the tire to and why ?

I have those tires and my momentum is a tripple axle. i set them at 125. i am not anal about though if my tpms is happy, so am i. those cooper are stout. almost like a semi tire. semis do not adjust their tires for the and neither do i