Maxxis Load D To E - Bouncy Ride

[Cecilt]

Had maxxis load E's mounted and balanced to replace my factory D's. TT weighs about 9500 loaded but wanted peace of mind. Drove home and ride was bouncy and I could feel it in the drivers seat. Called back and they said they balanced out fine, no tire flat spots and rims were all good. They aired them up to 80 psi per my request. Told them I was going to bring back to have them re look at the balancing.

They called back and said that I should air down to 65 psi to soften ride since that is what I had before. I said if I did that I would lose the benefit of having an E tire. Is that even correct to say. They said it will be a sacrifice of a stiffer ride at 80 and more weight carrying capacity on the tire of a softer ride and not getting the full benefit of the E's capacity.

I don't know if I should believe them so I am asking you folks. Please advise what I should do. I don't mind going to 72-75 psi but at 65 I could have stuck with a D tire. Thanks

[Cecilt]

OP here. The trip was fine and no bounce that appeared any different than before. Maybe a little but nothing to cause concern. My comfort level on riding on Maxxis Load E's was why I made the change. I never thought during the trip if one of my tires was going to shred and ruin my weekend or vacation.

[LScamper]

Maxxis tire chart:

clicky

Ran Maxxis ST205/75R15 at 50 lbs (1820 lbs per tire) for many years. Had several tread separations but just replaced with the same type tire. Gave up on Maxxis and tried Green Ball from Direct Tire. After about one year one of them blew out and another had a large bubble.

I'm sure my trailer is over weight but have not measured it.

Called Maxxis engineer to talk about updating tires. He suggested going to ST225/75R15 at 55 lbs (2270lbs per tire), a 25% increase in capacity and should ride about the same. Could go to 65 lbs (2540 lbs per tire) if I want to. Had to make sure there was enough clearance for the 1.2 inch diameter larger tire and get new rims. Have not towed enough to see if these tires are more reliable.

I asked about truck tires. The only thing he said was that after all the problems with car tires several years ago that they now have a much larger built in safety factor than they had back then.

[Crabbypatty]

I think the issue is more that under inflation can lead to excess heat and a blow out. I always keep my tires at the recommended inflation on the tire side wall. Using less air to soften the ride would definitely make me nervous. I would look into a suspension mod such as the air bag between the two sets of wheels.

[rbpru]

The LT vs. ST debate will go on forever but the hard fact is; there is no data to show that the failure rate per million is any better with one than the other.

It is a fact that the tire industry has designed and in most cases recommends ST tires for trailer use.

The tire manufacturers do not give two hoots whether they sell you an ST or an LT; they make money on both. They do care about their tire design.

ST vs. LT is pure rhetoric and opinion. I have never seen it backed up with any hard facts; and apparently neither has the DOT. I course the DOT could also be part of the great ST /LT conspiracy.

[Huntindog]

RinconVTR wrote:

Huntindog wrote:

RinconVTR wrote:


And people who think they can buy a "good quality"/"better tire" that is invulnerable to curb, pot holes and general damage is living a fairy tale. There is no such tire.

Of course no tire is industructable... But ST tires they should not fail at anywhere near the rate they do. .

Please Huntingdog....share with us the actual failure rate of ST tires.

You know that you don't know. So stop making blanket statements with absolutely no knowledge of fact or even educated guess.

I can say with certainty what my failure rate was when I drank the ST tire koolaid...(I was once a believer of all of the ST propaganda) I had many sets of STs, as I continually upgraded them in size and load rating, believing that the failures were not the tires fault.. It was no use. Not one set of my many ST tires made it to their second birthday...

And for the record, I too used to be a huge proponent of ST tires. You can look up my posts from years back to see for your self.

I may be a little dense at times, but eventually I learn.
My TT tire problems ended in 2006 when I made the jump up to LTs.

I now replace my TT tires due to age! What a concept.

[MM49]

Huntindog wrote:

MM49 wrote:

Huntindog wrote:

MM49 wrote:

goducks10 wrote:
What's the difference between ply's and belts? The D is 8 ply and the E is 10 ply. Surely 10 ply's are better than 8.

The ply or belt is a strength rating. It doesn't relate to a physical count of belts. Again the D and E tires are virtually identical in appearance and weight.
MM49

It's spliting hairs.
Years ago, an 8 ply tire had 8 plies, and a 10 ply had 10.

Now they go by ratings an 8 ply rated tire won't have 8 plies in it, but will have the strength of an old 8 ply tire.
What hasn't changed is that a 10 ply rated tire WILL be stronger than a 8 ply rated tire.

Your really good at making overly broad statments. You don't know the strength of the old 8 ply tire or the new one.Neither do you. You understand my point just fine. You are still just trying to split hairs for some reason. It wasn't that long ago that there wasn't even tire ratings as we know. During that time all tires were ST style construction. There is a need for ST tires in trailer usage with all their trade offs.
MM49

Unfortunatly tire construction is splitting hairs. A differnce in cord diameter or a rubber liner at cord intersectoin does make difernce. There will be trade offs with each method. My advice would be go with a proven brand like Maxxis that has made all those decisions and tested and validated the results. You will benifet from using a tire that is designed for trailer use application, yes there is a differnce.
MM49

[RinconVTR]

Huntindog wrote:

RinconVTR wrote:


And people who think they can buy a "good quality"/"better tire" that is invulnerable to curb, pot holes and general damage is living a fairy tale. There is no such tire.

Of course no tire is industructable... But ST tires they should not fail at anywhere near the rate they do. .

Please Huntingdog....share with us the actual failure rate of ST tires.

You know that you don't know. So stop making blanket statements with absolutely no knowledge of fact or even educated guess.

[Huntindog]

MM49 wrote:

Huntindog wrote:

MM49 wrote:

goducks10 wrote:
What's the difference between ply's and belts? The D is 8 ply and the E is 10 ply. Surely 10 ply's are better than 8.

The ply or belt is a strength rating. It doesn't relate to a physical count of belts. Again the D and E tires are virtually identical in appearance and weight.
MM49

It's spliting hairs.
Years ago, an 8 ply tire had 8 plies, and a 10 ply had 10.

Now they go by ratings an 8 ply rated tire won't have 8 plies in it, but will have the strength of an old 8 ply tire.
What hasn't changed is that a 10 ply rated tire WILL be stronger than a 8 ply rated tire.

Your really good at making overly broad statments. You don't know the strength of the old 8 ply tire or the new one.Neither do you. You understand my point just fine. You are still just trying to split hairs for some reason. It wasn't that long ago that there wasn't even tire ratings as we know. During that time all tires were ST style construction. There is a need for ST tires in trailer usage with all their trade offs.
MM49

[jspringator]

The PSI rating of the wheel is indicated by a sticker on the inside of the wheel. IIRC, the stock wheels on my Jayco Eagle were rated at 65 PSI. Have you checked this on your wheel? This very may well answer your question.

Additionally, I remember one of the major tire manufacturers published a chart with the weight rating of a particular tire at different PSI's. Weigh the trailer by axle, divide by 2, add a 15% margin of error, and the chart should give you a PSI. Too much air can make the trailer ride so harshly it could damage it.

I've got 2 Goodyear LT tires (Cargo, I think) that fit a Sprinter van on my front axle. 2 for the rear go on next year.

[MM49]

Huntindog wrote:

MM49 wrote:

goducks10 wrote:
What's the difference between ply's and belts? The D is 8 ply and the E is 10 ply. Surely 10 ply's are better than 8.

The ply or belt is a strength rating. It doesn't relate to a physical count of belts. Again the D and E tires are virtually identical in appearance and weight.
MM49

It's spliting hairs.
Years ago, an 8 ply tire had 8 plies, and a 10 ply had 10.

Now they go by ratings an 8 ply rated tire won't have 8 plies in it, but will have the strength of an old 8 ply tire.
What hasn't changed is that a 10 ply rated tire WILL be stronger than a 8 ply rated tire.

Your really good at making overly broad statments. You don't know the strength of the old 8 ply tire or the new one. It wasn't that long ago that there wasn't even tire ratings as we know. During that time all tires were ST style construction. There is a need for ST tires in trailer usage with all their trade offs.
MM49

[4X4Dodger]

rbpru wrote:
Since my current tires already exceeds my axle capacity, why should I buy tires that have even more more capacity then the axles that support them?

Yet people do this all the time.

Well this comes to mind.

They are the WEAKEST link in the chain.

They are much more prone to failure by overloading than the axle.

They are much more prone to failure period.

It never hurts to increase your safety margin/design margin where and when you can if the economics are right.

[JIMNLIN]

Nobody is making excuses, they are just stating facts.

People can whine all they want but the fact remains that the TT and 5ver tire market is well over a million a year, plus the cargo trailer market, plus the horse trailer market, plus the farm trailer market not to mention the large and small boat trailers.

..over a million tires in a year is but a drop in the bucket in the tire world.

This from Cooper;

".. approximately 40 million tires Cooper sells annually in the U.S., said Pat Brown, a spokeswoman for Cooper."

One reason most USA tire makers stopped producing or even selling ST tires years back was they had small over all sales in the big picture. They were simply a niche tire with small over all annual sales.

We have dozens of ST tire brands floating around out here so one ST tire maker or supplier can't have very big annual ST tire sales......enter the made in china/mexico/Asian rim countries.

[gmw_photos]

Huntindog wrote:

...snip...

I believe that my TT tires should be able to do what ever my TV tires do, and just as reliably.
And I have found that using LT tires like what is on my TV makes that happen.

And that right there has been my experience as well.

Far as I'm concerned, that should be a forum sticky, and it could serve to eliminate endless pages of "discussion" regarding tires. 😉 🙂

[Huntindog]

RinconVTR wrote:


And people who think they can buy a "good quality"/"better tire" that is invulnerable to curb, pot holes and general damage is living a fairy tale. There is no such tire.

Of course no tire is industructable... But ST tires they should not fail at anywhere near the rate they do. If peoples automobile tires were this bad, people would not put up with it... (probably cause nobody could get to work with any reliability:B) But put these junk tires on a TT accompanied with a lot of propoganda, and a lot of people suddenly believe that they have no other choice.. That their TT tires are super fragile and must be treated like fine china... Well they were likely made there right?.:B

I believe that my TT tires should be able to do what ever my TV tires do, and just as reliably.
And I have found that using LT tires like what is on my TV makes that happen.