Quote:
Originally Posted by ROBERT CROSS
Yes… I saw that the other day and thought the same thing but I was waiting for someone else to bring it to light.... what's up?
Bob
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What's up is that there is an unusual occurrence between LT type tires and C type tires - allow me to explain.
The standard for LT tires is set up by the US based Tire and Rim Association. In Europe, they have a different organization that sets up tire standards - ETRTO (European Tyre and Rim Technical Organization). ETRTO doesn't use the letters LT - they use the letter "C" at the end of the tire dimensions (what we generally refer to as "size".) and they use "C" type tires for tires that go on small trucks (think minitrucks!) to Over-the-Road 18 wheeler type stuff. It covers a large range.
LT tires use Load Ranges (C, D, E, etc.) where C type tires use Load Index (Indices). C type tires do NOT use Load Range.
Most of the time, the differences between LT type tires and C type tires is small enough to ignore. BUT in the 225/75R16 "size", there is a high Load Index C type tire (kind of equivalent to an LT E Load Range) that has a remarkably higher Load Carrying capacity than its equivalent LT E Load Range.
That is what is going on.
A word of caution: In this area, one has to be very precise about the language and how things are phrased. This is an example of why.
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