ISO LOAD INDEX/SPEED SYMBOL
UNDERSTANDING ISO LOAD INDEX & SPEED SYMBOL
The ISO* LOAD INDEX: a numerical code associated with the maximum load a tire can carry at the speed indicated by its speed symbol under service conditions specified by the tire manufacturer. (Note: 1 kg – 2.205 lbs.)
The ISO* SPEED SYMBOL: indicates the speed at which the tire can carry a load corresponding to its Load Index under service conditions specified by the tire manufacturer.***International Standardization Organization **Exceeding the legal speed limit is neither recommended nor endorsed.
L = Speed Rating
144/141 = Load Index (ISO)