Upgrading tire load range

[robbdrell]

My 2915 rockwood 2608ws came with Constancy ST 205 75 R 14. Load C. I've put 13k on them this summer with no problem. I use a tire pressure monitoring system and keep them religiously @ 50 PSI and never exceed 65 MPH. Still I want to move up to a D Load but can't find them in the 14's, particularly with Maxxis if possible. 15" tires will be to tight. So should I drop the idea of the D and just go with the Maxxis in the C? Just looking for an opinion. Thanks


Robb

[UmptySquat]

I'm wondering the same thing. I'm meticulous with mine. Got them new this year and have 3k on them. I figured I'd go 2 years and switch from ST to higher load range but hard to find 14s.


2013 Toyota Tundra 5.7L
2015 Apex 288BHS

[HONDAMAN174]

Whoops- my suggestion only makes "c's".

2014 Evo 2850 "Woodstock"
2011 Toyota Tundra "Clifford"

[stevejahr]

In the same boat almost... 2016 2604WS and I have not found much:

Tire Only 14 Inch Tires and Wheels | etrailer.com

[pontiacdan45]

What about axel rating? Will that be sufficient to handle the load?

[KMP44]

Originally Posted by robbdrell

So should I drop the idea of the D and just go with the Maxxis in the C? Just looking for an opinion.

Here's what I did - I went with Kumho 857's. They are a eurometric size, but they are a 14" LR D trailer tire. They make a 185, and 195, and 205. All of them would fit the original rims, but the aspect ratio is different than the cheap OEM garbage. I found a set of 195's, which had almost the exact same diameter as the 205 OEM tires.

And after some debate and discussion with the guys at the tire shop, we set the pressure at 50psi. I tried e-mailing Kumho customer service for a recommendation, but got no response. Bottom line is we went by the OEM sticker - 50 psi not the tire sidewall max. I wasn't trying to increase the load I was carrying and the trailer rode really nice on the original tires at 50 psi, so right or wrong, that's what we went with. Very happy with these tires and the TST pressure monitor after a full season and couple thousand miles.

[Ray and Ann]

I had a similar issue; lost two tires on the road and I found that our 2008 8319ss Rockwood weighs more than the total load range of the tires that came on it. I replaced all of the tires with same diameter, slightly bigger tires with load range E instead of C. Now running at 80 lbs instead of 50; so far no problems.

[8288WS]

Recommend you upgrade to load range E providing the rim is rated for them. Keep them inflated to 80 lbs. They will run much cooler and less likely to blow out on you and spoil your day. Speaking from experience.

[acadianbob]

Originally Posted by KMP44

Here's what I did - I went with Kumho 857's. They are a eurometric size, but they are a 14" LR D trailer tire. They make a 185, and 195, and 205. All of them would fit the original rims, but the aspect ratio is different than the cheap OEM garbage. I found a set of 195's, which had almost the exact same diameter as the 205 OEM tires.

And after some debate and discussion with the guys at the tire shop, we set the pressure at 50psi. I tried e-mailing Kumho customer service for a recommendation, but got no response. Bottom line is we went by the OEM sticker - 50 psi not the tire sidewall max. I wasn't trying to increase the load I was carrying and the trailer rode really nice on the original tires at 50 psi, so right or wrong, that's what we went with. Very happy with these tires and the TST pressure monitor after a full season and couple thousand miles.

I did exactly the same thing about 3 years ago. Excellent tires. Did 195/82/14 to get the same circumference as 205/75/14. You get LR D, MORE load capacity, and a speed rating of 99 mph. Did the same TST 507 TPMS system. Also an awesome choice.

[pdqparalegal1]

Originally Posted by robbdrell

My 2915 rockwood 2608ws came with Constancy ST 205 75 R 14. Load C. I've put 13k on them this summer with no problem. I use a tire pressure monitoring system and keep them religiously @ 50 PSI and never exceed 65 MPH. Still I want to move up to a D Load but can't find them in the 14's, particularly with Maxxis if possible. 15" tires will be to tight. So should I drop the idea of the D and just go with the Maxxis in the C? Just looking for an opinion. Thanks


Robb

Try to find a 205/60/15 in E range lower profile may work

[Airdale]

Originally Posted by robbdrell

My 2915 rockwood 2608ws came with Constancy ST 205 75 R 14. Load C. I've put 13k on them this summer with no problem. I use a tire pressure monitoring system and keep them religiously @ 50 PSI and never exceed 65 MPH. Still I want to move up to a D Load but can't find them in the 14's, particularly with Maxxis if possible. 15" tires will be to tight. So should I drop the idea of the D and just go with the Maxxis in the C? Just looking for an opinion. Thanks


Robb

You can find LRD tires in that basic size. Just do some more searching. I don't do recommendations so these are just options. The LRD can be found in these brands; Goodyear, Karrier, Power King. I'm sure there are others.

[JohnT]

Go to the web site etrailer.com, they carry a ST205/75R/14 tire in a D rated. Bought some from them this summer,don'thave many miles on them sofar but they seem to perfom good. The "D" rated tires are hard to find.

[jeff64]

the only thing I've seen in the 205 75R 14 D was a Karrier

[Cathcartww]

Our last trailer had 14" wheels, but the Kuhmo's were out of stock, so we ended up with the Kendra Karriers which came in LRD. They seemed like nice heavy tires, and went over 15,000 mile over two years with no problems ..... They we traded it in .....

[OldBob]

Originally Posted by robbdrell

My 2915 rockwood 2608ws came with Constancy ST 205 75 R 14. Load C. I've put 13k on them this summer with no problem. I use a tire pressure monitoring system and keep them religiously @ 50 PSI and never exceed 65 MPH. Still I want to move up to a D Load but can't find them in the 14's, particularly with Maxxis if possible. 15" tires will be to tight. So should I drop the idea of the D and just go with the Maxxis in the C? Just looking for an opinion. Thanks


Robb

Robb,

I had the same problem with my 27' Wildwood XL. The only tire I could find was the Kenda Karrier in load range D. They are fantastic tires and have never had a problem with them. The are ST205 75R 14 Load range D. I bought them here:
$73.99 - Karrier ST205/75R14 tires | Buy Karrier tires at SimpleTire

I hope this helps.

OldBob

[mnoland30]

There are two problems with trailer tires. The load range is usually too low, and the speed rating is also too low. I refuse to buy tires in load range C or 65 mph speed rating. If we all would do that, they'd stop making junk tires. I went from the 205/75R14s to Taskmaster 215/75R14s from etrailer that are LRD and rated for 81 mph. Not many miles on them yet, but so far, I'm very happy. They were about 1/2" taller than my old tires, but that doesn't seem to be a problem. I filled mine to 65 psi and it rode fine. I put the same tires on my boat trailer. The problem with blowouts is the damage they do to both the trailer, and potentially the other tire. I've replaced the fendere on my boat twice now. That costs more than the tire. I got a little damage from the two blowouts on my ROO.

[French]

The real issue here is that rv manufacturers and or the dealers that order the rv's from the factories spec undersized tires and rims. We all know why... $$$$$
Our brand new trailer was on overloaded tires the day we picked it up. Unbelievable that this is allowed to happen. We have since upgraded to a d load range up from a c but are exceeding the rim spec of 65 psi max. We have no other choice other than to tolerate this besides upgrading the rims as well. If rv manufacturers used appropriate tires on rims that could take the pressure in the first place these endless threads on tire blow outs and upgrades would be much less prevalent. If buying new again I would get better tires from the factory...... Upgraded rims are not even available for our unit from the factory though.
Now That my friends is dysfunctional!

[UmptySquat]

How can you tell the psi rating of rims?


2013 Toyota Tundra 5.7L
2015 Apex 288BHS

[French]

On our rims there is a sticker on each rim that indicates max psi 65. Forest river rep mentioned the same at the Goshen rally

[SilhouettePenny]

Originally Posted by UmptySquat

How can you tell the psi rating of rims?


2013 Toyota Tundra 5.7L
2015 Apex 288BHS

Steel wheels should have the psi rating stamped on the inside (backside) of the rim, remove from trailer and inspect. Aluminum wheels can be researched online to find the info.