# 2011 Ford F-150 FX4 Tire Size

Your Ford was manufactured with different tire sizes. To determine the best tire size for your specific 2011 Ford F-150 FX4, we first need to determine your rim size. Please review the information below.

## How to Determine Rim Size

Check your existing tires. Your Ford F-150's rim size is the number to the right of the R. In the example pictured here, the tire size fits 16-inch rims.

## Rim Size Selection

Now that you know your rim size, make a selection below to filter your results.

## 18-Inch Rims

### 2011 Ford F-150 FX4

Your 2011 Ford F-150 FX4 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 2011 Ford F-150 FX4.

## LT275/65R18/C 113

### Simplified Size: 275-65-18

Simplified size is useful for shopping and buying tires.

The original tire size for your 2011 Ford F-150 FX4 is **LT275/65R18/C 113S**. A color-coded explanation of the 2011 Ford F-150 FX4's tire size is shown below.

LT | This letter denotes the intended use of the tire.
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275 | This number indicates that your tire has a width of 275 millimeters. | ||||||

65 | This number means that your tire has an aspect ratio of 65%. In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 65% of the width. In this case, the sidewall height works out to be 178 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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18 | The tire size was designed to fit rims or wheels that are 18 inches in diameter. | ||||||

C | The mark of C denotes your tire's load range, or ply rating. A load range of C means that the tire has a ply rating of 6. Letters further along in the alphabet represent stronger tires that can sustain higher inflation pressures. Tires with higher inflation pressures can carry heavier loads. | ||||||

113 | This tire has a load index of 113, which means it's capable of carrying a load of 2530 pounds (1150 kg) or less. A higher number means the tire can carry more weight. A lower number means the opposite. | ||||||

This tire has a speed rating of S, which means 111 mph (180 km/h) is the maximum speed that can be sustained for 10 minutes. A higher speed becomes dangerous. |

## P275/65R18 114

### Simplified Size: 275-65-18

Simplified size is useful for shopping and buying tires.

The original tire size for your 2011 Ford F-150 FX4 is **P275/65R18 114T**. A color-coded explanation of the 2011 Ford F-150 FX4's tire size is shown below.

P | This letter denotes the intended use of the tire.
| ||||||

275 | This number indicates that your tire has a width of 275 millimeters. | ||||||

65 | This number means that your tire has an aspect ratio of 65%. In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 65% of the width. In this case, the sidewall height works out to be 178 millimeters. | ||||||

R | This letter denotes how your tire was constructed. Radial is the standard construction method for about 99% of all tires sold today.
| ||||||

18 | The tire size was designed to fit rims or wheels that are 18 inches in diameter. | ||||||

114 | This tire has a load index of 114, which means it's capable of carrying a load of 2596 pounds (1180 kg) or less. A higher number means the tire can carry more weight. A lower number means the opposite. | ||||||

This tire has a speed rating of T, which means 118 mph (190 km/h) is the maximum speed that can be sustained for 10 minutes. A higher speed becomes dangerous. |

## 20-Inch Rims

### 2011 Ford F-150 FX4

The original tire size for your 2011 Ford F-150 FX4 is listed below. Tap on the box to view a color-coded explanation of your Ford F-150's' tire size.

## P275/55R20 111

### Simplified Size: 275-55-20

Simplified size is useful for shopping and buying tires.

The original tire size for your 2011 Ford F-150 FX4 is **P275/55R20 111T**. A color-coded explanation of the 2011 Ford F-150 FX4's tire size is shown below.

P | This letter denotes the intended use of the tire.
| ||||||

275 | This number indicates that your tire has a width of 275 millimeters. | ||||||

55 | This number means that your tire has an aspect ratio of 55%. In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 55% of the width. In this case, the sidewall height works out to be 151 millimeters. | ||||||

R | This letter denotes how your tire was constructed. Radial is the standard construction method for about 99% of all tires sold today.
| ||||||

20 | The tire size was designed to fit rims or wheels that are 20 inches in diameter. | ||||||

111 | This tire has a load index of 111, which means it's capable of carrying a load of 2398 pounds (1090 kg) or less. A higher number means the tire can carry more weight. A lower number means the opposite. | ||||||

This tire has a speed rating of T, which means 118 mph (190 km/h) is the maximum speed that can be sustained for 10 minutes. A higher speed becomes dangerous. |

### 2011 Ford F-150 FX4 - Similar Models

The 2011 Ford F-150 FX4 has similar models that may have different tire sizes.

2011 Ford F-150 FX22011 Ford F-150 Harley-Davidson Edition2011 Ford F-150 King Ranch2011 Ford F-150 Lariat2011 Ford F-150 Lariat Limited2011 Ford F-150 Platinum2011 Ford F-150 STX2011 Ford F-150 SVT Raptor2011 Ford F-150 XL2011 Ford F-150 XLT