New Tires

[KHBama]

Hey guys. Looking at new tires for our new 5th wheel. Currently have the Trailer Kings but looking at the Carlisle Trail HD Tires from walmart but aren't they also D rated? Any suggestions for a good E rated trailer tire? Thanks

[Tinner12002]

A lot depends on what size wheels you have. If you have 16" wheels then you have several options, I had good luck with Maxxis tires in an E rated, not sure if the Carlisles are 15 or 16. Some have had good luck with the Goodyear Endurance tires also in the 16" size. If your wheels are 15" and 6 lug then I would definitely upgrade to a 16" 6 lug wheel and tire combo as you have more tire choices in 16" than you do in 15". Just my opinion.

[JRTJH]

Hey guys. Looking at new tires for our new 5th wheel. Currently have the Trailer Kings but looking at the Carlisle Trail HD Tires from walmart but aren't they also D rated? Any suggestions for a good E rated trailer tire? Thanks

Your trailer came with 225 75R15 LRD tires. WalMart has Carlisle Radial Trail HD tires in 225 75R15 LRE which will substantially improve your load carrying capability. They were, at the last time I checked, $67 each, delivered to the store nearest you. Some WalMart service centers install tires purchased there for free (extra for balancing) but all WalMarts that I've see will not remove or install wheels on a travel trailer, so to use that service, you'd have to jack your trailer, remove the wheels, take them to WalMart and then after the tires were mounted, you'd need to take them home, install them on your trailer and torque the wheels.

But, to answer your question, load range E (10 ply tires) are available at WalMart to fit your trailer and very likely the wheels are rated "exactly" the same as the LRE load rating. You'll have to check the back of the wheel spokes to verify that, but they should be the standard wheels from all the "mid weight fifth wheels" produced by Keystone.

[sourdough]

Your trailer came with 225 75R15 LRD tires. WalMart has Carlisle Radial Trail HD tires in 225 75R15 LRE which will substantially improve your load carrying capability. They were, at the last time I checked, $67 each, delivered to the store nearest you. Some WalMart service centers install tires purchased there for free (extra for balancing) but all WalMarts that I've see will not remove or install wheels on a travel trailer, so to use that service, you'd have to jack your trailer, remove the wheels, take them to WalMart and then after the tires were mounted, you'd need to take them home, install them on your trailer and torque the wheels.

But, to answer your question, load range E (10 ply tires) are available at WalMart to fit your trailer and very likely the wheels are rated "exactly" the same as the LRE load rating. You'll have to check the back of the wheel spokes to verify that, but they should be the standard wheels from all the "mid weight fifth wheels" produced by Keystone.


My TT came with the same LRD tires as John mentioned. The wheels were rated for LRE pressure so I upgraded to the Carlisle Radial HDs and it makes a big difference.

[Ken / Claudia]

I am going to check wal mart next time, I paid 96 each for mine at a discount shop last year.

[JRTJH]

Ken,

For some reason, WalMart's website makes it difficult to find the Carlisle LRE tires in 225 75R15 sizing. It won't typically show up when searching for them. Here's the link to the tire: https://www.walmart.com/ip/Carlisle-Radial-Trail-HD-Trailer-Tire-ST225-75R15-E-10/55012166

Price is still $67 per tire, which is the lowest price I've seen anywhere for New Carlisle RT HD's in that size.

[KHBama]

Thanks for the info guys

[CWtheMan]

The Society of Automotive Engineers (SAE) have the responsibility for wheel certifications. When searching there for information you will find that the wheel’s limiting factor is the certified weight they can carry. Therefore, whatever tire inflation PSI is needed to provide that wheel's maximum load is acceptable.

The dilemma arises when the wheel is not designed to support the tire fitted to it. For instance; The ST235/80R16 topped out at load range "E". That had a maximum load capacity of 3520#. Almost all of the OEM wheels Keystone used for that fitment had these specs; 3580# at 80 PSI. Now along comes the newer load range "G". It's the same physical size as the LRE but has a much higher load capacity. When installed on the 3580# wheel those LRG tires can only be inflated to a PSI value that will support the wheel's maximum load of 3580#.

[ChuckS]

I was fortunate my Keystone Alpine came fitted with Sendel T10SM wheels rated at 3850 110 psi. Yanked off the TK 235/80x 16 and installed 235/85x16 14 ply tires and run at 110psi.


Sent from my iPhone using Tapatalk

[JRTJH]

Based on the OP's initial post and the specs for his trailer, his trailer came equipped with 6 lug 15" wheels and Trailer King 225 75R15 LRD tires, so the OEM T03 aluminum wheels on his trailer are rated to support either 65PSI LRD tires at 2540 pounds or 80PSI LRE at 2830 PSI. Here's the mold on the back of the wheel spoke:

[SummitPond]

... but all WalMarts that I've see will not remove or install wheels on a travel trailer, ...

When I got the D rated Carlisle's at Wally World (upgraded from the C rated China bombs) they did change them for me. They even had me drive around the parking lot a while so they could check the torque afterwards. Interesting there's a difference between the stores.

------
Formerly ShacterShack - name changed per request of DW so she was comfortable getting a Forum Membership Decal (http://www.keystoneforums.com/forums/showthread.php?p=268273#post268273) with the member name on it.

[B-O-B'03]

Discount Tire will match Wally's prices and they do mounting/balancing (at least the one I went to).

They had me pull the truck/trailer up and they brought floor jacks out and replaced the tires.

-Brian

[Tinner12002]

Based on the OP's initial post and the specs for his trailer, his trailer came equipped with 6 lug 15" wheels and Trailer King 225 75R15 LRD tires, so the OEM T03 aluminum wheels on his trailer are rated to support either 65PSI LRD tires at 2540 pounds or 80PSI LRE at 2830 PSI. Here's the mold on the back of the wheel spoke:

And with that being said, I would upgrade to a 16" 6 lug wheel so the OP would have a greater choice of tires available and to have a little cushion as far as tire weight ratings are concerned.

[CWtheMan]

I was fortunate my Keystone Alpine came fitted with Sendel T10SM wheels rated at 3850 110 psi. Yanked off the TK 235/80x 16 and installed 235/85x16 14 ply tires and run at 110psi.


Sent from my iPhone using Tapatalk

Do you know that most 235/85R16 LRG tires have a minimum rim width requirement of 6.5"?

Note: As of 2007 the tire prefix, as in ST235/80R16, is an official part of the tire's size designation.

[JRTJH]

And with that being said, I would upgrade to a 16" 6 lug wheel so the OP would have a greater choice of tires available and to have a little cushion as far as tire weight ratings are concerned.

That's definitely an option, if he has enough wheelwell room and space between the axles. Most do, but some don't. Depending on the slide configuration, on some trailers there's a slide ram that interferes with larger tires and on others there is an outrigger stiffener that sits above one axle that either has to be moved or cut away. If he doesn't have a clearance issue, changing to 16" wheels is a good option if he needs even more weight capacity than 5660 pounds (15" LRE tires) Keep in mind that his axles are rated at 4400 pounds, so there is an element of overkill to consider.