Am I able to upgrade to an 8 ply

[Deeds]

I have a 26ft laredo bumper pull, I'm getting these trailer kings off asap! I talked to the local tire guy and he said he wants to put Carlisle hd's on and that their 8 ply, I'm not positive but I believe my trailer kings a 6 ply... I'm curious is this the right move going to an 8 ply any different characteristics I should be expecting? I was thinking about before I had my 1 ton I had an f150 that I put 10 plys on and I hated the jarring that I got from them! I dont want things to fall apart inside because of the stiffer tire... any input?

[flybouy]

Typically folks go up one tire rating IF the rims are capable of the higher air pressure if the air pressure is higher. It would help if you shared what size tires came on the trailer originally or what the tire size spec is on the plate on the trailer.

The Carlisle HD's are a very popular and well received tire in the 14" & 15" rim sizes.

[sourdough]

What year is the trailer? What size are the tires? The 2019 23rb Passport comes with the LRD tire on it standard from what I can find on rvusa. Tire size shows 225/75r 15 LRD.

Is that the trailer? Is that the tire size? It is virtually impossible to give an accurate answer without any information.

If your trailer is older it may that it had the "lesser" tires with a lower load range than the newer ones.

[Deeds]

Sorry I had it here but deleted and and retype the post... what's on there is st205/75r14 load range c
I'm sticking with the same size in the Carlisle hd's but they are an 8 ply... in my research they look like they would be a load range d tire. Sorry for my lack of information! Been a long warm day

[sourdough]

I don't know much of anything about your trailer but if you are upgrading from a C to D in that 14" tire I figure you should be fine. I went from a D to an E in my last trailer (15") and it actually improved the towing and ride inside my trailer from what I could tell. Went with the Carlisle Radial HD and really liked them.

[Deeds]

Cool that's exactly what I was wanting to hear! I did a lot of research and the Carlisle seems to be one of the best! I hate watching the current trailer kings in a curve they dont look healthy! Now next ? Does anyone know what the torque spec is for this camper? It has aluminum wheels I was thinking probably around 110ft. Lbs

[sourdough]

First you need to determine if your current wheels will accommodate the pressure/load of a D rated tire. Look on the back of the wheel. There should be something (hopefully) stamped that says psi or lbs.

[Roscommon48]

Tires are now rated by a letter, no longer by plys.

i.e. E, G

Go up to the next ply rating that your wheels can accept

[CWtheMan]

Originally Posted by Deeds

Sorry I had it here but deleted and and retype the post... what's on there is st205/75r14 load range c
I'm sticking with the same size in the Carlisle hd's but they are an 8 ply... in my research they look like they would be a load range d tire. Sorry for my lack of information! Been a long warm day

You're actually not changing tire specifications or designated size with a load capacity increase to LRD. What you gain is the option to use the increased load capacity the LRD will provide with cold inflation pressures above 50 PSI.

I recommend changing the valve stems - steel recommended - and insuring your wheels are rated for inflation pressures to 65 PSI.

[gearhead]

It might require removing a wheel to find your wheel specs. The specs may be stamped on the back side of a spoke. And it might require some interpretation to understand what is stamped. I'm just pulling this out of the air...6H3100 could be interpreted as "6 holes, 3100 pounds". It could also be stamped as 5H2600. Or both. It may also be stamped 60 psi. You will have to extrapolate the pounds to a load rating.