What does load index 110 mean?

A run of flat 30 kg steps

109 is 1,030 kg. 110 is 1,060. 111 is 1,090. 112 is 1,120. Through this part of the series the increment does not vary at all, which is unusual — the table changes pace repeatedly across its full range, using 25 kg steps in the low hundreds and 50 kg steps above 120. In this narrow band you can add or subtract 30 kg per index point and be exactly right.

In pounds, and across a set

2,337 lb per tire, 9,348 lb for four. As always the pound figures are converted rather than defined, which is why they carry no roundness at all. Comparing two tires by their pound ratings means comparing two roundings of numbers that were specified in kilograms, and where the difference is a single index point the rounding can be a meaningful share of it.

Where 110 turns up

It is common on larger crossover and SUV sizes, and on passenger-construction tires in wide fitments where the extra load capacity comes from casing size rather than from a light-truck build. It also appears frequently as the second number of a dual rating on light-truck tires, where the first figure applies to single-wheel fitment and the lower second figure applies when the tire is used in pairs on one end of an axle.

What the index does not tell you

Nothing about the inflation pressure required to reach that load — that is printed separately on the sidewall, and the rating is only valid at it. Nothing about how the capacity was achieved, whether by casing volume, by construction, or by an Extra Load specification. And nothing about a specific size: load index is a property of the individual tire, not of the size code, so two tires in one size can carry different indexes. The XL and Reinforced markings page covers the last of those, and the decoder will read a complete service description.