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Reading a Tire Sidewall
Follow the diagram below for a complete overview on how to decipher the information displayed on a tire sidewall to get an idea of what size and type of tires you want.
| 31 | x | 10.50 | R | 15 | LT | C | 109 | Q |
|---|---|---|---|---|---|---|---|---|
| Nominal Overall Diameter (inches) | Nominal Section Width (inches) | Construction Code (Radial) | Rim Diameter | Light Truck Tire | Load Range | Load Index | Speed Symbol |
| Speed Symbol | Speed Category |
|---|---|
| N | 87 mph (140km/h) |
| P | 93 mph (150km/h) |
| Q | 99 mph (160km/h) |
| R | 106 mph (170km/h) |
| S | 112 mph (180km/h) |
| T | 118 mph (190km/h) |
| H | 130 mph (210km/h) |
| Load Range | Ply Rating |
|---|---|
| A | 2 |
| B | 4 |
| C | 6 |
| D | 8 |
| E | 10 |
| F | 12 |
| G | 14 |
| H | 16 |
| J | 18 |
| L | 20 |
| M | 22 |
| N | 24 |
Now that you are familiar with tire specifications, visit our tires page and shop our selection of wheel and tire packages.
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