Alongside the size, every tyre sidewall carries a load index and speed rating — for example, in "91V", 91 is the load index and V is the speed rating.
Load rating (load index)
The load index is a code that corresponds to the maximum weight a single tyre can carry when properly inflated. It's not a weight in kilograms directly — it's an index number that maps to a weight via a standard chart.
| Load Index | Max Weight (kg) |
|---|---|
| 75 | 387 kg |
| 82 | 475 kg |
| 91 | 615 kg |
| 98 | 750 kg |
| 104 | 900 kg |
A sample of common load indices — always check the exact figure for your tyre's specific index.
Always use a tyre with a load index that meets or exceeds your vehicle manufacturer's requirement. Fitting a tyre with a lower load rating than specified can be unsafe, especially fully loaded or towing.
Speed rating
The speed rating is a letter code indicating the maximum speed a tyre is designed to sustain safely under its rated load.
| Rating | Max Speed |
|---|---|
| S | 180 km/h |
| T | 190 km/h |
| H | 210 km/h |
| V | 240 km/h |
| W | 270 km/h |
| Y | 300 km/h |
These are ratings for sustained speed capability, not a recommendation to drive at that speed. As with load rating, always match or exceed your vehicle manufacturer's specified speed rating.
Not sure what your vehicle requires? Check your tyre placard or owner's manual, or get in touch and we'll help you confirm.