Trailer Life Magazine Open Roads Forum: replacing 2 of 4 tires on a TT question
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 > replacing 2 of 4 tires on a TT question

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Caryite

the Triangle

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Posted: 10/10/18 05:30pm Link  |  Quote  |  Print  |  Notify Moderator

I have a 30 ft TT (7500 GVWR, though I'm not usually over 6K-6.5K lbs) with 4 Maxxis ST205/75R 14 LR C tires (all 4 always at 50 psi per specs).

The front axle had 2 Maxxis from 2012, and the back axle had 2 of the same type from late 2016 (installed early 2017).

This past weekend, I lost one of the 2012's at the very end of a 225 mile trip. Fortunately, I was going very slow at the time after 60 down the interstate for much of the trip, and there was no TT damage other than the tire being flat. I'm now ready to replace that and the other 2012 Maxxi on the other side on the front axle.

My question is after reading the MANY threads here on the newer Good Year Endurance/Carlisle Radial Tires/Maxxis M8008 (now with LR D in my size) is which would make the most sense to get with the back 2 2016 tires, that I don't plan on replacing?

While I would like to get the GY Endurance tires (LR D), would it make sense to get a different set of tires on one axle at 65 psi, and still keep my Maxxis on the other only at 50 psi (LR C)?

I suppose I could always get 2 more of the same LR C Maxxis tires to also inflate to 50 psi to replace the 2 from 2012, and perhaps that would make the towing the most consistent?

I've only traveled 3500 miles on the new 2016 tires and they look perfectly fine, so I'd hate to just scrap those, but overall thoughts are welcome.

All things being equal, I'd be getting the Endurance after reading about those in many threads here, but I want to match the tires as best as possible for the expected life of the 2016 tires.

Maybe my next set of tires after 4-5 years from now can all be the same?

Thanks!

downtheroad

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Posted: 10/10/18 05:39pm Link  |  Quote  |  Print  |  Notify Moderator

My opinion only- and not based on anything except my preference and procedure:

I do not like to mess with the hassle and danger and damage caused by flats. And, I do not like to mix tire types....

I would bite the bullet and replace all 4 with the GY Endurance in LRD's and get on down the road.


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Dave5143

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Posted: 10/10/18 05:52pm Link  |  Quote  |  Print  |  Notify Moderator

My trailer came with load range "D" tires and I replaced them with load range "E" tires (Maxxis 8008) on both axles. I didn't notice any problems with the load range upgrade. Keep in mind that this does not increase your load rating, it just ensures that your tires are not the weak link. I don't believe that going with the upgraded load range version of either the Maxxis or GY Endurance (they are both great tires) on the same axle will hurt anything. The downside is keeping straight in your mind the difference in inflation specifications between axles as you correctly pointed out.


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donn0128

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Posted: 10/10/18 06:29pm Link  |  Quote  |  Print  |  Notify Moderator

Replace all 4. Take the best of the newest as a spare. You had a blow out on a tire a year beyond reasonable life expentency. Trailer tires regardless of brand are only good for 5 years. After that your playing with a loaded gun.
While not a fan the GoodYear Endurance has been getting good reviews.


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JIMNLIN

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Posted: 10/10/18 06:37pm Link  |  Quote  |  Print  |  Notify Moderator

Its been my experience its not a good idea to mix 50 psi tires on one axle and 65 psi on the other.
The biggest downside is braking imbalance between the front and rear axle especially on wet pavement.
Now add the difference in tire tread pattern which also can lead to the same braking imbalance issues.

Now if you have a lawn service trailer/utility trailer and most if not all the miles of service are around town then mixing load ranges and tread patterns isn't so much of a big deal. Hell many of those type don't have their brakes hooked up anywayz.


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Posted: 10/10/18 06:43pm Link  |  Quote  |  Print  |  Notify Moderator

Load Range C tires may be within specifications but they weren’t in my comfort zone with a 5200 pound TT wet and loaded. And TT tires six years old? Not me again. I replace at least every four years...LR Ds.


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Caryite

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Posted: 10/11/18 05:22am Link  |  Quote  |  Print  |  Notify Moderator

donn0128 wrote:

Replace all 4. Take the best of the newest as a spare. You had a blow out on a tire a year beyond reasonable life expentency. Trailer tires regardless of brand are only good for 5 years. After that your playing with a loaded gun.


Thanks all for the replies. I should have mentioned that I opted to buy a new Power King Tow (Blow) Max to get home in the same tire size and 50 PSI, because I didn't want to run on my older original bias ply spare for over 200 miles. I plan to use that tire for my spare going forward and have that one moved when I get the 2 new tires for my front axle.

I don't think I will go with a different tire using a different PSI, even if on a different axle.

I would be fine with two more LR C Maxxis and replace all 4 after another 4 years. By then, we'll see which tire(s) are the most recommended.

* This post was edited 10/11/18 10:25am by Caryite *

NMDriver2

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Posted: 10/11/18 06:37am Link  |  Quote  |  Print  |  Notify Moderator

I ran new ST Maxxis tires on one axle and new LT Nexan tires on the other axle for 18 months to see which set lasted longer. Lt tires are still fine after another 18 months and the ST tires developed bulges after a couple of hot summer drives. I now run all LT tires. I realize in your tire size that may not be a good option, but if you can find LT tires with a weight rating that matches your load then I would buy them.

BTW I did not notice any handling/wear difference between the LT and ST tires while they were both on the 5er. There is about 75lbs difference between my front and rear axle weights when loaded and I put the LT tires on the slightly heavier front axle.


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Posted: 10/11/18 07:30am Link  |  Quote  |  Print  |  Notify Moderator

There is a new school of thought (also indicated on MichelinRVTires.com) that the spare should be included in the tire rotation because a tire that is not used deteriorates faster than those that are used. I carry two spares and rotate all six tires every two years.
Overkill? perhaps, and they are Michelin XPS ribs that require 80 psi.


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time2roll

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Posted: 10/11/18 08:47am Link  |  Quote  |  Print  |  Notify Moderator

Most will say everything must match. I don't buy that it will make any difference. Get the pair of Endurance this year and replace the other pair in a few years if that is what the budget allows.


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