On a tire for goods transport vehicles, if the load capacity index is shown as two figures separated by a slash (for example, 149/145), what does it mean?

Question

DentroTest · Accepted Answer

The dual load index marking (for example, 149/145) indicates the maximum capacity the tire can bear according to the fitting configuration. The first figure, which is always the higher one (149), corresponds to single-wheel fitting. The second figure, which is lower (145), corresponds to dual-wheel fitting. In dual fitting a lower capacity is assigned per tire as a safety margin against possible misalignments, pressure differences or unevenness in the roadway that cause one tire to take on more weight than the other. The position of the tire on the front or rear axle and whether the axle is fixed or liftable have nothing to do with this standard nomenclature.

On a tire for goods transport vehicles, if the load capacity index is shown as two figures separated by a slash (for example, 149/145), what does it mean?

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