Maxxis M8008 self-destruct

Francesca Knowles wrote:

Lowsuv wrote:

I did a search looking for LT failure
I found no such post

Try different search terms. That is, if you really want to "know".

Here's one: Posted July 2013

Posted: 07/05/13 07:16pm Link | Quote | Print | Notify Moderator
Well, I never expected to be writing this but I had a blowout on my second set of Michelin 16” LT load range E tires. They were only a year old.

We were on our way back to Houston Tx a week ago from a long summer vacation loop through the southwest desert. (About a 3000 mile pull.) On the last day just a couple of hundred miles north of home on US 84 we lost a tire to what the tire store manager called a catastrophic blowout. (There were just some inner casing pieces between the beads.) This was during the heat wave, I think the outside air temperature was about 103 degF. I pull at 60 mph, checked my tire pressure in the morning as I started and thought I was good. All that came to an end when a car pulled up next to me and held up a sign saying “blowout”. Bummer.

I could not even tell I was down a tire. There was no indication based on handling. Last time I scaled I was about 8600 lbs total on the two 5200 lb trailer axles.

Now I don’t feel so invincible tire wise. It cold have been due to a bad tire, a leaky valve stem, road hazard, who knows?

Maybe it is time for RIBs on the trailer and a tire pressure monitoring system.

Good thing I carry a tire changing ramp and DOT triangles.

Oh well, time to go fix the damage to the trailer…

Thank you for the link.
This LT tire failure goes back to July 2013 , so about 15 months as opposed to Maxxis ( Chang-Shin Rubber of Taiwan ) which is posted about one per month .
The particular failure was in 103 degree heat .
A contributing factor was that the Michelin that failed was a SMALLER tire , size LT 225/75R16 LRE , rated for 2680 # on the LT scale.
The diameter of that 225 is 29.4 inches .
The original ST tire was an ST235 /80 R16 LRE placarded at 3420 # on the ST scale .
Diameter of that ST 235 /80 is 31.7 " .
A better choice would have been to use the very common LT 245 /75R16 LRE placarded at 3042 # on the LT scale .
The diameter of the 245 /75r16 is 30.4 "
The space was available to use the 245 /75 but instead a SMALLER 225 /75 was used and that weight rating is 88 % of the 245 /75 .
So far the single LT failure is one every 15 months and the mitigating factor is that the LT that failed was a SMALLER tire than the original by a factor of 88 % .