Posted 2013-01-18 10:38 AM (#149399) Subject: tire and rim question
My trailer weighs 10620 pounds loaded, camp gear, horses & all we need. The tires that came on it are china LT235/85 R16 load range E, I am going to put new usa tires on it, question is if I go with a load range G american tire, Will my rim handle the 110 pound air pressure? They are steel rims. What tire would the experts put on this trailer, the china tires on it scare me and have to go. thanks alot
Posted 2013-01-18 10:44 AM (#149400 - in reply to #149399) Subject: RE: tire and rim question
Expert
Posts: 3802 Location: Rocky Mount N.C.
A LT235/85 R16 load range E tire is rated at 3042# each. It's more than enough for your trailer. Your rims are probably rated for 90 psi max. Stick with the American made load range "E" tire...
Posted 2013-01-18 12:16 PM (#149402 - in reply to #149399) Subject: RE: tire and rim question
Expert
Posts: 2453 Location: Northern Utah
I concur.
4*3042=12,168 lbs Which is more than your trailer weighs,
A certain percentage of your trailer is on the truck. Either gooseneck or bumper hitch.
You didn't state if 10,620 is the weight on the axles or the trailer total. I suspect, since you have such an exact number, you weighed it and that is the weight on the axles.
Most rims capable of 110psi pressure are stamped on the rim their maximum air pressure. If you don't see the stamp, Then your wheels are probably not rated for that high of pressure.
The Load Range E tires are cheaper, You will have a lot more choices in mfg of tires. Make those the smart choice to stick with.
Posted 2013-01-18 2:22 PM (#149404 - in reply to #149399) Subject: RE: tire and rim question
thanks guys, My trailer is a gooseneck, another question I did unhook and pulled the truck off the scales to get the 10620 pounds, I should have weighed it hooked up to but I didnt. My G.V.W.R on my trailer plate says 10400, am I over loaded? The dealer says no because of the weight that is on the hitch, is this right? Going out to see if I and find a psi stamp on the rims. I cant wait to get the usa made tires so I can go down the road without that worry, thanks.
Posted 2013-01-18 3:14 PM (#149405 - in reply to #149399) Subject: RE: tire and rim question
Elite Veteran
Posts: 788 Location: Tenn/Ala.
By definition- yes and no, are you overloaded. When you will be weighed to check your loading condition (for purposes of overloaded), your truck will be under your trailer, and 25% or better of that number will register on the truck's axles. Your trailer will be recognized as what weight they pull from its axles and applied against the GVWR. You will not be that overloaded then.
For what it is worth, there are at least two "acceptable" methods of calculating GVWR that many manufacturers use. One of them completely ignores tongue weight. The other takes the axles/tires ratings and then adds 25% for the tongue. Thus a trailer with 2ea 7,000 axles and 4ea 10PR tires would be 4*3042#= 12,168 (the lesser of tires or axles)on the axles * 1.25 = 15,210 GVWR. Another popular manufacturer would rate that same trailer at 12,168 GVWR
Oh- my personal opinion is I'd put a high quality LT235/85R16 Hiway tread tire on it and run it at 80 PSI. Smoother the tread pattern, the better.
Posted 2013-01-18 5:42 PM (#149407 - in reply to #149399) Subject: RE: tire and rim question
10620 pound loaded trailer weight- not sitting on the truck+ 20% safety=12744, so 4 michelin LT235/85 R16 xps rib load rated E tires @ 3042 lbs 80 psi each =12168 pounds I would still be under my 20% safe zone,? am I wrong?this is why I was thinking about going with load g rating, sorry I know this has been talked over and over thru the years. thanks for any input
Posted 2013-01-19 8:15 AM (#149409 - in reply to #149399) Subject: RE: tire and rim question
Elite Veteran
Posts: 788 Location: Tenn/Ala.
Go with the "E" Michelin XPS Rib and don't look back. You'll love them.
That 20% factor I read in there is not something that LT makers espouse. When they say it carries 3042#, they're covering your safety limit in there. Load it to that full load. The commercial industry uses load ratings as stated. I'm not sure if that 20% is special to ST tires, or something Carlisle puts out.
tire and rim question
