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Old 04-29-2013, 11:04 AM   #1
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Which Tire is best

I recently bought a 2004 34' Classic which needs 6 new tires. The trailer still has the factory 15" wheels, which I want to keep. This is my first trailer and I am unsure which tires to get. Any advice/suggestions would be appreciated. Thanks.
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Old 04-29-2013, 11:21 AM   #2
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Start here Tires - Airstream Forums
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Old 04-29-2013, 11:38 AM   #3
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Oh no, not again!

Go_Navy, tire questions are often asked and are debated endlessly.

I would suggest replacing them with Goodyear Marathons, which are probably what it has now.
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Old 04-29-2013, 02:17 PM   #4
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Thanks Jammer- I am here to post a thread titled tires- thoroughly confused. I've been reading all sorts of posts.... Isn't there some more or less simple answer?
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Old 04-29-2013, 03:50 PM   #5
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There has been a lot posted about tires. You need to decide what you are comfortable and safe with. First, what type of tire - ST or LT ? Then what size - 15" or 16" ? Then what manufacture ? All has been talked about here, on this forum. Happy hunting
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Old 04-29-2013, 04:52 PM   #6
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Thanks. I will be keeping the 15" rims. So that part is an easy decision. I dont know which is better the LT or ST tires and frankly dont know anything about tires. I have read so many meandering posts about tires on this website..I was hoping for a pretty simple answer/recomendation on which brand and which type (LT or ST).
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Old 04-29-2013, 05:34 PM   #7
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I had Maxxis tires on our '85 Excella and was pleased with the service from them
over 4 yrs. and probably 25-30k miles. Our current trailer has GYM's and also with no issues. So despite what I read about them the GYM's have also given good service. That's 2 years and maybe 20k miles. When I need new tires I'm still not sure which direction I'll go. I will consider LT but need to carefully look at the max. weights.
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Old 04-29-2013, 06:45 PM   #8
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See short summary of tire posts on this forum, below. Other forum members, please feel free to correct or amend, as necessary.

ST = Special Trailer
LT = Light Truck
XL = Extra Load


Options for original 15-inch wheels

* OEM Goodyear Marathon (GYM), ST tires, load range D (65 psi max). This is probably what came as standard equipment on your Airstream.

* Other brands of ST tires, load range D (65 psi max).

* GYM or other brands of ST tires, load range E (80 psi max), which have slightly higher load carrying capacity. A few common brand names include Maxxis, Carlisle and Tow-Master.

* Bias ply tires with specifications similar to ST tires. (These tires appear to be used mostly on much older Airstreams, which may have come with bias ply tires; and this substitution is not common on newer models.)

* Slightly oversized XL tires, with specs similar to old load range C (50 psi max). Typical size is 235/75x15. This substitution is relatively new; and there is very little history on their use. Also, the load carrying capacity of XL tires may be insufficient for some Airstream models.

Note: There are no LT tires made in size 225/75x15; so for 15-inch wheels, selection is limited to ST, XL and other tires listed above.


Options for 16-inch wheels

Some owners have switched to 16-inch wheels and LT tires, because they are very close in physical size and rating to the OEM 15-inch wheels and ST tires; and 225/75x16 is a common LT tire size that is widely available from many manufacturers.

Note: While it appears from anecdotal evidence that LT tires may be more reliable than similarly spec'd ST tires (especially for those who exceed the ST's 65 mph maximum speed rating), many AirForum members seem to be satisfied with GYMs and other ST tire brands (in 15-inch sizes).

The most common LT tire used is the 225/75x16, Michelin LTX M/S (or M/S2), load range E (80 psi max), which comes standard on Eddie Bauer models and is optional on several other Airstreams.

It appears that numerous AirForum members have switched to 16-inch wheels and tires, and there have been no reported failures that I can recall in the past year or two. However, there is no detailed data available to support this best-guess estimate.

A few AirForum members have switched to commercial-grade LT tires with steel sidewall plies (e.g., BF Goodrich Commercial T/A's and Michelin XPS Ribs). While these Airstream owners generally feel that commercial tires provide an additional margin of protection against tread separation and blowouts; these tires are significantly more expensive, and there is currently no supporting data to justify their use. However, it appears that owners using commercial tires feel that the additional confidence and peace of mind justifies the extra expense.

===========

Additional reading:

http://www.airforums.com/forums/f438...res-16506.html

http://www.airforums.com/forums/f465...res-69297.html

http://www.airforums.com/forums/f438...oll-76867.html
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Old 04-29-2013, 06:56 PM   #9
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I believe those of us that have 6 tires on the ground have an advantage...the weight per tire is low considering the mass of a 34' trailer. That make life for tires easier than, say, a 30' Slideout with 4 tires and about the same weight.

Knock wood, I've been happy with my Marathons.
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Old 04-29-2013, 07:57 PM   #10
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Phoenix - if you go to a 15" ST E rated tire, how do you confirm whether the existing wheel can handle the higher pressure? My trailer's placard says the wheel is a 15x7jj but a google search on that doesn't produce info on tire pressure. Thx!
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Old 04-29-2013, 10:08 PM   #11
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Previous response to the same question in another thread:

The maximum pressure is molded into the aluminum on the inside of the wheel (visible when the tire is removed. I think the OEM 15-inch wheels say 110 psi, but not absolutely sure. In any case, 80 psi is OK. Also, for trailer applications, most tire stores, including Costco and Discount Tire, recommend inflating to maximum pressure that appears on sidewalls of tires, which is 65 psi for load range D and 80 psi for E's.
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Old 04-29-2013, 10:21 PM   #12
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Thanks - not sure how I missed that... :-/
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Old 04-30-2013, 05:19 AM   #13
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Quote:
Originally Posted by Globie64 View Post
.......Isn't there some more or less simple answer?
Yes, but there isn't agreement on what that answer is.
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Old 04-30-2013, 06:19 AM   #14
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My opinion

Quote:
Originally Posted by Go_Navy View Post
I recently bought a 2004 34' Classic which needs 6 new tires. The trailer still has the factory 15" wheels, which I want to keep. This is my first trailer and I am unsure which tires to get. Any advice/suggestions would be appreciated. Thanks.
Since you are asking for opinions, I'll give you mine.
In my opinion, the best 15" tire that would handle the weight of your trailer is the Michelin LTX M/S2 P 235/75/15XL. It is a "P" tire, so the weight rating on the sidewall must be derated when used on a trailer.

Have fun reading!
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