2009 Infiniti FX50 Tire Size
Your 2009 Infiniti FX50 was manufactured with multiple tire sizes. Choose a tire size below to get a color-coded explanation of the differences. Then pick the best tire size for your 2009 Infiniti FX50.
265/45R21 104
Simplified Size: 265-45-21
Simplified size is useful for shopping and buying tires.
The original tire size for your 2009 Infiniti FX50 is 265/45R21 104W. A color-coded explanation of the 2009 Infiniti FX50's tire size is shown below.
265 | This number indicates that your tire has a width of 265 millimeters. | ||||||
21 | The tire size was designed to fit rims or wheels that are 21 inches in diameter. | ||||||
104 | This tire has a load index of 104, which means it's capable of carrying a load of 1980 pounds (900 kg) or less. A higher number means the tire can carry more weight. A lower number means the opposite. | ||||||
45 | This number means that your tire has an aspect ratio of 45%. In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 45% of the width. In this case, the sidewall height works out to be 119 millimeters. | ||||||
R | This letter denotes how your tire was constructed. Radial is the standard construction method for about 99% of all tires sold today.
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This tire has a speed rating of W, which means 167 mph (270 km/h) is the maximum speed that can be sustained for 10 minutes. A higher speed becomes dangerous. |
P265/45R21 104
Simplified Size: 265-45-21
Simplified size is useful for shopping and buying tires.
The original tire size for your 2009 Infiniti FX50 is P265/45R21 104V. A color-coded explanation of the 2009 Infiniti FX50's tire size is shown below.
P | This letter denotes the intended use of the tire.
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265 | This number indicates that your tire has a width of 265 millimeters. | ||||||
21 | The tire size was designed to fit rims or wheels that are 21 inches in diameter. | ||||||
104 | This tire has a load index of 104, which means it's capable of carrying a load of 1980 pounds (900 kg) or less. A higher number means the tire can carry more weight. A lower number means the opposite. | ||||||
45 | This number means that your tire has an aspect ratio of 45%. In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 45% of the width. In this case, the sidewall height works out to be 119 millimeters. | ||||||
R | This letter denotes how your tire was constructed. Radial is the standard construction method for about 99% of all tires sold today.
| ||||||
This tire has a speed rating of V, which means 149 mph (240 km/h) is the maximum speed that can be sustained for 10 minutes. A higher speed becomes dangerous. |