Convert ST tires to LT tires

There are online sources that will tell you your tire dimensions. For ST235/80R16's you have 2 LT choices unless you can/want to go to a much larger or smaller size or change rim sizes.

The LT245/75R16's are very close to the same height and about .25" or less wider. The LT235/85R16's are about 1" taller and about the same width.

I went with the LT245/75R16 Michelin XPS Rib. My existing tires are on 6.5" rims. The Ribs manufacture width lists them at .25" wider but thats using 7" rims. When mounted on my 6.5" rims the width is just barely wider than the ST's. A very close match.

ST tires generally have a higher load rating than LT's but its difficult to compare. ST tires show the absolute max rating not to exceed. The LT tires typically are underrated by 20% to allow a safety margin.

Red wing wrote:
Hi everyone

How do you convert ST tires size to LT tires size? For example 235/80R/16 load range E to a light truck tire size.

sorry, what do you mean 'convert'.

Sailun's S637 LT is 235/85/16 (LR G)
Goodyear's 614 RST is 235/85/16 (LR G)

if you mean 17.5.. its 215/75/17.5 (LR H)

I'd do that by going to a couple different tire stores and discussing the matter with the tire guys. They have reference charts that give data such as rolling diameter, weight limits, etc. that you will be hard-pressed to find otherwise. Those details are more important than any mere size designation. What's more, you need to understand that tire sizes are not quite as standard as say wrench sizes. Sometimes changing tire brand requires a different size to get a better match.