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Old 01-14-2015, 03:29 PM   #41
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Originally Posted by r carl View Post
If you don't pull your camper 5k miles a year bias ply tires would be a good choice.
I have a friend in our unit that will run nothing bur bias ply tires on his vintage 31' because when they do tear up, they usually do no damage to the trailer. However, he tears up about two tires a year.
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Old 01-14-2015, 06:43 PM   #42
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Stopping on the side of the road is an unacceptable option. Forget TT damage, THAT'll get you killed.
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Old 01-14-2015, 07:28 PM   #43
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I believe that the 16" tires should have a lot more air pressure..I looked at the michelin site and it was hard for me to read but I think I saw. E 2680 @ 80, 2560 @ 75 and 2440 @ 70 lbs air pressure, it didn't say nothing about 45 lbs...
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Old 01-14-2015, 07:41 PM   #44
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I ordered a 2015 25' Serenity this week and asked my dealer to get a quote from AS to upgrade to the 16" wheels/tires combo. They quoted me $1,700 to upgrade. That seems crazy to me. I would have expected maybe 700.00 to swap out the 15 for the 16's. Anyone else have experience with AS on this topic?

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Old 01-14-2015, 07:49 PM   #45
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You can buy 5 Wheels and 5 Michelin 16's for that.Then sell the ones that come with the trailer n Craigslist or Airstream forum classifieds.That is what I did.


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Old 01-14-2015, 08:06 PM   #46
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I just bought 5 16" Sendels with 5 Michelin LT's at $330 per set mounted and balanced. I sold my 15" OEM"s for $600. This upgrade cost me a little over $1,000.

This was an excellent price as an Airstream dealer quoted me $4,000 for the same thing.

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Old 01-14-2015, 08:28 PM   #47
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We bought four Sendels/Michelins for ours and sold the originals. Considering the reliability of these Michelins I think replacing the original spare tire is a waste of money, it will get you home (or to the tire shop) should the unlikely event of a flat actually happen.

I suspect the only bad trait of these tires is a rougher ride for the Airstream. Combine that with the stiff ride of a heavy duty truck and the Airstream structure can take a beating. We tow with a 1/2 ton and try to minimize hitch and truck bed loads. I started with 80 psi in the Michelins, now use 65 psi but keep an eye out for things tossed around inside, shell condition outside.
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Old 01-14-2015, 10:29 PM   #48
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Having a wrong size spare to save a few bucks is your choice.But if it was the right thing to do your new Airstream would have come with a smaller diameter spare or none at all.As we all know Airstream cuts corners anywhere they can.
There are people on this forum willing to spend the money to do things the proper way.


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Old 01-14-2015, 10:46 PM   #49
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I have also considered leaving the spare and its carrier at home to lighten the heavy hitch weight and achieve a smoother ride for our Airstream. The probability of the 16" Michelins failing is slim to none, and if running over a nail the trailer can continue with one tire removed to a tire shop. It's in your Airstream Owners Manual.
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Old 01-15-2015, 06:30 AM   #50
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After having a BF Goodrich Commercial TA 225/16 separated and blow out last summer, I installed the original spare, a Goodyear Marathon ST225/15 and drove it about a hundred miles to the first tire store where I could buy a replacement 16" LT tire.

Nothing bad happened as result.
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Old 01-15-2015, 07:00 AM   #51
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After having a BF Goodrich Commercial TA 225/16 separated and blow out last summer, I installed the original spare, a Goodyear Marathon ST225/15 and drove it about a hundred miles to the first tire store where I could buy a replacement 16" LT tire.

Nothing bad happened as result.
Of course not, about like running one tire 10 psi low.
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Old 01-15-2015, 10:36 AM   #52
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LT Tire Survey

I know that each of us will do what we think is best.
My reference is the Michelin truck tire data book 14th edition 2011. The first part refers to rv applications and charts the rv tires as an each side weight on the tire/axle pg 12 has the 16" XPS Rib 225 listed with weight to psi figures. Interestingly if you go to page 22 you will find the M/S tires cross referenced to the Rib with the same weight psi specs on the 16" Size. Under the RV application the rib has a 1940lb side rating @50 psi which matches the 3880 lb rating per axle on the m/s and rib chart. My contention is twofold 1) that if tires were unsafe at anything other than max psi on the sidewall the charts would not exist nor would cars use lower figures on their door frames 2) the chart exists to match psi to load approximately to optimize the radial foot squat- not too much, not too little. I actually run 50-52psi.

Good to hear you are considering the tires and wheels. You will like them.
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Old 01-16-2015, 08:36 AM   #53
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I did look at the chart, interesting,but I would still run more air, 65-75. The tire flexing at the sidewall causes heat and heat causes tire failure.On my big trucks we try to run the maximum pressures,even though the tires are sometimes lightly loaded. My life is mostly dependent on the steer tires, with 16000 lbs on the front axle,you lose one of them, you will be in the ditch,and it does happen when a tire is run low or has a slow leak from picking up road debris....You learn to be vigilant when you stop every couple hours and do a look see. Knock on wood I have not had any tire failures from low air pressure....
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Old 02-28-2015, 03:01 PM   #54
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I have a 2004 25' CCD that needs tires. I want to go to LT tires, but would rather not have to move to 16" rims. Having some trouble finding michelins that will fit. Can you give me the size and type of tire you are using? Thanks.
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Old 02-28-2015, 04:45 PM   #55
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27FB P235/75 R15 108T XL BFG long trail. 4 years. No issues. 6000 lb spread amongst the 4 tires.


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Old 02-28-2015, 04:48 PM   #56
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Check out post 11 in this thread for more details. http://www.airforums.com/forums/f438...ml#post1374406


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Old 04-27-2015, 05:10 PM   #57
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LT Tire survey

Switched to LT's a few years back but kept them 15". (LT 235/75R15 HNUL BN4X 2211 104/101R). Since then they've seen Nova Scotia and PEI on the east coast and Yukon and Alaska on the west coast. They seen some pretty rough roads but I haven't had a problem with them and they hold their pressure extremely well. I've added TPMS to monitor pressure and temperature just as an extra measure of safety.

One question I have is what are the advantages of going to 16" wheels?
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Old 04-27-2015, 05:22 PM   #58
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Switched to LT's a few years back but kept them 15". (LT 235/75R15 HNUL BN4X 2211 104/101R). Since then they've seen Nova Scotia and PEI on the east coast and Yukon and Alaska on the west coast. They seen some pretty rough roads but I haven't had a problem with them and they hold their pressure extremely well. I've added TPMS to monitor pressure and temperature just as an extra measure of safety.

One question I have is what are the advantages of going to 16" wheels?
Better tire selection and higher payload ratings.
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Old 04-27-2015, 07:43 PM   #59
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Quote:
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I'm probably the only guy that has had a failure with an LT tire. It was a LT225/75X16E B.F. Goodrich Commercial TA, (Discount tire told me they were just as good as Michelins) about 2 1/2 years old with about 30,000 miles on it. Seperated at 60mph and did $2000 damage to my trailer.

I then replaced all them with Michelins and have not had any more troubles, but this was last summer so don't have hardly any time of miles on them.
BF goodrich commercial had two sizes recall for seperation made between 2010-2012
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Old 04-27-2015, 08:32 PM   #60
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You might wish to read up on the stresses on tandem axle trailer tires. The use of the Load & Pressure Tables isn't proper in this instance. See Tireman9s blog.
Actually you should ALWAYS use the load and pressure table in any application. I looked for an excellent reference website on this topic that I found last year but could not find it to post- yet. The summary of the article described truck trailer, towing, and RV applications. The author described using a temperature monitoring system to fine tune the correct air pressure for any tire. He said to use the chart for a starting point, then watch the temp. I do not remember the temperature ranges that he gave but he mentioned that fast temperature rise indicates too low a pressure and weakens primarily tire sidewall; however, he mentioned that if a tire is running cooler than average operating temp (need his chart) that it weakens tire surface area/tread- too much pressure for application. He spoke quite a bit about tire contact point and adjusting for and external difference using averages for other tires (sunny side, etc.). I hesitate using the maximum pressure. Since my post some months ago, I have done more fine tuning of my own tires and am currently at 54psi. When I find that article and temp chart I will post it.

Quote:
I believe that the 16" tires should have a lot more air pressure..I looked at the michelin site and it was hard for me to read but I think I saw. E 2680 @ 80, 2560 @ 75 and 2440 @ 70 lbs air pressure, it didn't say nothing about 45 lbs...
Actually the Michelin chart has nine PSI/weight ratings on the chart. 225/75/16E

PSI 40 45 50 55 60 65 70 75 80

3300 3580 3880 4120 4380 4670 4880 5120 5360 (per axle)
Max load and pressure each tire--------- 2680 LBS at 80 PSI

Remember too that the E rated tire is a much heftier tire than a D.

Quote:
I ordered a 2015 25' Serenity this week and asked my dealer to get a quote from AS to upgrade to the 16" wheels/tires combo. They quoted me $1,700 to upgrade. That seems crazy to me. I would have expected maybe 700.00 to swap out the 15 for the 16's. Anyone else have experience with AS on this topic?
Not Airstream but as others have stated, it costs about $1200 to buy it and do it yourself. I got the tires from Sams and the wheels from a local wheel shop (Sendel)and then got them load balanced- all for about $1300. The main reason to go with 16" is that most tires are in that size versus a few in 15".
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