LT tires on TT

PartyMarty wrote:

FastEagle wrote:

Lowsuv wrote:


Guys like sprinklerman , gmwphotos , partymarty , jimnlin, huntingdog , and a few others have explained thoroughly why an LT graded tire is a tougher tire than an ST graded tire with an identical sidewall weight rating .

Actually it's misunderstandings like the one above that keeps posts like this active.

There are zero ST tires with identical sidewall weight ratings. The load capacity letters such as LRE must be linked to the charts they belong in. Charts for the LT235/85R16E tire from any manufacturer will list its maximum load capacity at 3042# when aired to 80 psi. Charts for the ST235/85R16E tire from any manufacturer will list its maximum load capacity at 3460# when aired to 80 psi. That's not a pro or con statement, it's a fact.

FE

I think you do not understand that the ST standard itself is so much weaker that a 235 x 16 load range E tire is rated 3640# on an ST scale yet is only rated for 3042 # on an LT scale .
The ST tire has about 85 % of the mass of the LT tire and sells for 85 % of the price of the LT graded tire .
The ST tire is NOT better .
The ST standard ( weaker ) just makes it appear so .

In this first reference you will find load inflation charts for passenger and light truck tires. It’s from Toyo tires but the charts are standardized by the TRA. Tire manufacturers will produce their own charts for the tires they manufacturer but will most often give credit to the TRA for the actual figures.

Toyo Chart

In this second chart you will find the load inflation chart from Maxxis tire. It shows only the radial trailer tires that they manufacture.

Maxxis Chart

The tire’s construction will determine it’s strength. The amount of air pressure used will determine the amount of strength (load capacity) available at that psi reading.

The only figures that have leverage are those molded into each tire’s sidewall. Trying to take anything else to the bank is not going to work should a judgment call be needed.

FastEagle