OldGreaser wrote:
Hi FE,
I believe CapriRacer explained this much earlier. My understanding is that a different K factor is used for ST's than for LT's. The LT load rating displayed on the tire is calculated with a greater safety factor and it is possible that an LT marked 3042# could be stronger than an ST marked 3640#.
CapriRacer, please correct me if I am wrong.
Safety Factor is nice sounding in strict engineering terms but Safety Factor involves probability of something bad happening.
The laws that tires must comply with, do not allow 99% or 99.9% or any percentage under 100% being able to pass DOT testing. Any single tire failing to pass the required tests could result in thousands or hundreds of thousands of tires having to be recalled.
