Originally Posted by hbillsmith
Assuming that the like-size tire swap LT for ST involved an LT tire that has:
- the same or more plys (tread and wall)
- the same or better load rating at both 80psi and 110psi
- the same or better real world user reviews
What's wrong with that?
Because that is hypothetical. For instance, any LT235/85R16E tire is going to have a maximum load capacity of 3042# @ 80 PSI. Any ST235/85R16E is going to have a maximum load capacity of 3640# @ 80 PSI.
When using a LT235/85R16E as a replacement for any ST235/80R16E tires you are actually plus sizing with a replacement that is inferior in load capacity. Its not what you do that counts. Safety counts, and that safety is on the side of the tire industry standards. so, I strongly recommend using options that fit in the safety circle.
Of course the tire you are describing is probably the LT235/85R16G. Its sort of a hybrid tire built exclusively for trailer service. Its in the safety circle.
Tire industry standards are very consistent in a phrase very similar to this: Replacement tires must provide a load capacity equal to or greater than what the Original Equipment tires provide via recommended inflation.
Info: The LT245/75R16E tires have a minimum
rim width of 6.5".