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Old 02-25-2016, 08:53 AM   #85
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The 15" Michelin LTX (P) 235/75R15 XL tires have a larger foot print on the pavement than the original 14" GYM ST215/75R14C tires installed on our 2015 23D or the original 15" GYM ST225/75R15D tires installed on our 2013 25FB. That larger foot print is better for braking and handling side loads created by cross winds and or passing trucks. We use(d) 44 psi in both applications so the trailer had a softer ride with no 65 mph speed restriction like on the sidewalls of the GYM tires which are placarded to have 50 psi in the 14" tire and 65 psi in the 15" tire.

Note that the sidewall rating for the Michelin tire captioned above is 2,183 pounds. That load capacity is reached at 41 psi with this tire and it can be inflated to 50 psi to stiffen the sidewalls. However, in the trailer environment, this "P" series tire must be derated 10% to 1,985 pounds. Thus even with the derated load capacity, this tire has the reserve load capacity that could work even for the 27' and 28' models with a GVW of 7,600 pounds. Note that this most likely does exclude the Land Yacht with a 8,200 pound GVW which may be now coming on the 16" Michelins.

Note that Airstream uses the same axle on these models per the 2015 Interntional Parts Book:

410980-02 Axle, 3800 Lbs., 28’, 27’, 25’, 25 & 27FB Eddie Bauer
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Old 02-25-2016, 09:15 AM   #86
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Originally Posted by Mixter View Post
Also, has anyone had any issues with a tire dealer putting the Michelin LT tires on a trailer? I have heard of tire places saying they wont put anything but a trailer tire on a trailer....
I had one Discount Tire (Naperville IL) refuse right out of the box when I called them. Another Discount Tire (Addison IL) was hesitant but finally agreed after some discussion.

I was fully upfront when I called, as I didn't want any surprises when I showed up a the shop.

I did bring just the wheels, not the whole trailer, as I prefer to torque my own wheels.


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Old 02-25-2016, 09:38 AM   #87
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We have been advised by Airstream repair shop owners on this forum, our Airstream Owners Manual, and our own experience that Airstreams can suffer from an excessively stiff ride.

So we use the Michelin LTX M/S 16" tires at 65 psi for a softer sidewall, good braking traction, and reliability. And that Airstream also uses this tire as an upgrade.
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Old 02-25-2016, 09:51 AM   #88
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I see that, but is that the only difference?
I believe summer tires take the heat best.
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Old 02-25-2016, 10:55 AM   #89
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Originally Posted by dkottum View Post
We have been advised by Airstream repair shop owners on this forum, our Airstream Owners Manual, and our own experience that Airstreams can suffer from an excessively stiff ride.

So we use the Michelin LTX M/S 16" tires at 65 psi for a softer sidewall, good braking traction, and reliability. And that Airstream also uses this tire as an upgrade.
Thanks doug. I looked for the complete specs. of your tires in previous posts and threads but have not found them. Could you please post them?

For the Defender series of tires, the TireRack site shows a variety of sizes, but only certain ones permit 65 psi. Perhaps you have a higher duty load range etc. tire? Not sure if you have the Defender series also. Thanks

Thanks,

Peter

See under "Specs" here:

https://www.tirerack.com/tires/tires...nder+LTX+M%2FS

And here are the non-Defender LTX M/S tires:

http://www.tirerack.com/tires/tires....odel=LTX+M%2FS
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Old 02-25-2016, 01:33 PM   #90
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American Tire (local name for Discount Tire chain) sold me the Sendels and XPS Ribs and mounted and balanced them for me with steel valves, but wouldn't mount them on the Airstream only because they had no experience with the Centramatics. I believe they would have mounted them on the Airstream without Cetnramatics. So I purchased them at an American Tire store close to C&G Airstream in Bellflower, CA, and Rod mounted them with the new Centramatics for me while he was doing some other work for me. He had a slight challenge getting the larger wheel/tire to fit into the standard Airstream spare tire holder, but got it done.

I was very impressed with both shop. The American Tire guys were right on top of their game as far as pricing-they seemed to be aware of everyone else's prices on the Michelin's and were very competitive--no haggling necessary. We also chose them because there seem to be a lot of Discount Tire shops along our route from Southern California to Texas. although not quite as many from Southern California up to Washington State--Les Schwab seems to rule in the upper left hand corner of the country.
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Old 02-25-2016, 01:50 PM   #91
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Originally Posted by dkottum View Post
We have been advised by Airstream repair shop owners on this forum, our Airstream Owners Manual, and our own experience that Airstreams can suffer from an excessively stiff ride.

So we use the Michelin LTX M/S 16" tires at 65 psi for a softer sidewall, good braking traction, and reliability. And that Airstream also uses this tire as an upgrade.
HI Doug-

Thanks for the input. After much back and forth on the forum about the right tire pressure for the 16" Michelins, we contacted Airstream directly about recommended tire pressures for the 16's that they offer. We spoke to two different techs over time. Their official advice is to set the tires to manufacturer's specs. By that they mean 80 psi. In reality, this is a MAX of 80 psi, but gets closer to the high 60's or low 70's (depending on how much safety percentage) according to Michelin's charts for load bearing capacity. And we all know to do this on our trucks--many of us have 80 psi tires that the truck manufacturer recommends setting lower, especially for the front end, and only higher when the load is high (such as the rear when towing.)

When I asked the Airstream guys specifically whether we should set at 65-73 or so to give the coach the ride for which it was designed or at 80 to get the best tire wear, they repeated that they advised 80 psi but agreed that the lower pressures ARE better for the coach. I was able to engage one gentleman, and he agreed that it's a compromise. At 80 psi, the sidewalls are better supported for the shear that can happen especially when backing up at extreme angles, and most of our Airstream tire failures seems to be from tread separation, which is likely related to this pushing the tires (especially the front tires on a double axle) almost completely sideways. But on the other hand, it definitely gives the coach a harsher ride. Our first trip on the new XPS's at 78 psi definitely resulted in stuff moving around inside that never had before--we had a kitchen cabinet burst open for the first time and dishes all over the coach--and more of the tiny inside rivets popping earlier than usual--no question at all. We we've decided to re-set at 73psi, as others have suggested, still leaving a healthy load bearing safety margin. BUT, if we know that we're doing a trip where there's going to be a lot of backing into tight spaces on pavement (instead of softer gravel or loose dirt or sand) where the front trailer tires are going to be scrubbed sideways hard, we may run them higher on those days. In fact, in a perfect world, we'd actually pump them up before maneuvering into a tight space, and then bleed them once out of the space and aligned straight for the day's drive. But I doubt that I'll do that in the real world, and hence the 73 psi compromise.

--Cliff
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Old 02-25-2016, 02:29 PM   #92
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Cliff, I agree there are compromises on tire choice and pressures used, not everyone agrees. As you say we each have to research and experiment to find what works for our own use. By nature I am sensitive to safety while finding the best way to care for our Airstream.
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Old 02-25-2016, 03:42 PM   #93
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Originally Posted by gecko View Post
American Tire (local name for Discount Tire chain) sold me the Sendels and XPS Ribs and mounted and balanced them for me with steel valves, but wouldn't mount them on the Airstream only because they had no experience with the Centramatics. I believe they would have mounted them on the Airstream without Cetnramatics.
Discount Tire in Casa Grande AZ happily sold me and mounted tires onto my TV (Dodge 2500HD) with my Centramatics.
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Old 02-25-2016, 08:08 PM   #94
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Ahh....unless you're towing at around 9,000' and the rain turns to sleet and then snow in less than a mile and your trailer decides it wants to go faster than the tow vehicle...and all of a sudden it doesn't want to just follow.

That was the tightest U-turn I've ever made with a 28' trailer on a two lane highway!

Been there done that but there is not a tire made that will help a trailer in that situation.Towing in ice and snow is an art with a lot of luck involved.


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Old 02-26-2016, 09:11 AM   #95
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Please stay on topic or the thread will be closed.

The topic is Michelin XPS RIB vs. LTX M/S2.

>>>>>>>>>Action
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Old 02-26-2016, 09:57 AM   #96
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Please stay on topic or the thread will be closed.

The topic is Michelin XPS RIB vs. LTX M/S2.

>>>>>>>>>Action
Please take the time to read the tread.We are on topic.
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Old 02-26-2016, 10:47 AM   #97
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Yeah! There's no argument or name calling going on here. Simply discussion about summer tires in winter conditions. Which is the topic.
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Old 02-26-2016, 10:55 AM   #98
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So here's a question, what do UPS trucks use in the winter if the Rib is a summer tire?
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