Tire recommendations st 225 75 R 15

[KATOOM]

I tow a 1999 34 ft. triple axle Airstream trailer that weights about 10K loaded with a 2011 Ram 3500 DRW. I have run Goodyear Marathon 225 75R15 load range D trailer radials for over 10 years. I have towed this trailer 25k miles since 2006, with 3 sets of tires and NO blowouts. Flats, slow leaks, yes but no blowouts. I watch the pressure and always try to keep them at 65 psi cold (72-78 degrees ambient) and I use a Pressure Pro TPMS on all 6 wheels. The tires were replaced due to wear or age and did not fail. The Pressure Pro system alarms at 58 psi and I've had a leak due to glass cuts. The tire was patched on the inside and is still on the trailer.

That brings up a point which should be addressed..... The one major issues with ST tires, especially those on RV trailers, is that people use their camp trailers very little and therefor those tires are subject to sitting in one spot for months or even years at a time. That is HORRIBLE for any tire but because of the ST construction, they dry out and separate unless they're being used at least every few months. Take notice that everyone who uses their RV trailers or other trailer often will state that they never have tire issues. Its not a coincidence.

 

[MichaelOverfield]

I tow a 1999 34 ft. triple axle Airstream trailer that weights about 10K loaded with a 2011 Ram 3500 DRW. I have run Goodyear Marathon 225 75R15 load range D trailer radials for over 10 years. I have towed this trailer 25k miles since 2006, with 3 sets of tires and NO blowouts. Flats, slow leaks, yes but no blowouts. I watch the pressure and always try to keep them at 65 psi cold (72-78 degrees ambient) and I use a Pressure Pro TPMS on all 6 wheels. The tires were replaced due to wear or age and did not fail. The Pressure Pro system alarms at 58 psi and I've had a leak due to glass cuts. The tire was patched on the inside and is still on the trailer.

Wow, did I read that correct? 3 tire sets, in 9 years, or every 3 years average, with each set of tires lasting about 8300 miles on average?

I would sure HOPE no issues with such frequent tire changes, low miles, and constant monitoring.

Not so sure that bodes well for ST tires though, I got about 8 years and at least 15000 or so on ONE set of GY Marathons before one of the 4 began to separate plys and become misshapen (causing a broken spring). Granted, by age alone these were due for replacement, but the other 3 have no dry rot and near new tread remaining.. I have to admit, compered to the OEM bias plys, there is no comparison, the GY Marathons were massively better.

I do store the trailer with the wheels off the ground, and covered (no sun) so that likely is a help.

Still, I had tires go many more miles on my cars, some in storage for long periods of time, under load, and never seen the type of failure or rapid wear of ST tires.. I'm just seriously doubting they are "special". Granted, one needs the proper load rating no matter what type of tire is used, but I don't by the sway and sidewall arguments, and I'll be testing this real time. I've also done some cross section cuts to see first hand what if any significant differences are there.. so far not seeing much to favor ST, the only ST advantage I do see is a higher load range can be had in tires 15" and less, but some LTs can be had in 15", but none in 14" so, if you have to keep the smaller rims, you might be stuck with ST tires.

 

[AH64ID]

IIRC tripples are harder on tires than tandems are in terms of scrubbing.

I worse a set of GY Marathons out on my sig TT in around 12-14K miles and that was doing a 6 tire rotation with the spares every spring. It took me 3 seasons to do that. Lots of gravel and tight corners ate the tread up.

 

[The patriot]

Can you still read the GVWR sticker? It should be on there.

I don't know. Haven't been under there in a while. I'll nose around next time I'm out there. See what I can see.
On one of the tires currently on there, some of the tread is separated from the casing. As if it was a recap on a big truck. Theyre GY marathons.
I dont even want to go far, or highway speeds even to get them replaced. I was lucky to make it home on them without an issue.

 

[MichaelOverfield]

I don't know. Haven't been under there in a while. I'll nose around next time I'm out there. See what I can see.
On one of the tires currently on there, some of the tread is separated from the casing. As if it was a recap on a big truck. Theyre GY marathons.
I dont even want to go far, or highway speeds even to get them replaced. I was lucky to make it home on them without an issue.

Mine were getting there, starting with a bulge... I did a cross-section cut to confirm ply separation was the cause.. given more miles it would have no doubt started to come apart, but the spring broke first in my case, likely due to the increased vibration on that wheel/axle.



I'll try to attach the picture..

 

[Grey Wolf]

Looks like the spare I just replaced!