# 2011 GMC Terrain Tire Size

Your GMC was manufactured with different tire sizes. To determine the best tire size for your specific 2011 GMC Terrain, we first need to determine your rim size. Please review the information below.

## How to Determine Rim Size

Check your existing tires. Your GMC Terrain'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.

## 17-Inch Rims

### 2011 GMC Terrain

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

Trim Options:

### SLE

## P225/65R17 100

### Simplified Size: 225-65-17

Simplified size is useful for shopping and buying tires.

The original tire size for your 2011 GMC Terrain is **P225/65R17 100T**. A color-coded explanation of the 2011 GMC Terrain's tire size is shown below.

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

225 | This number indicates that your tire has a width of 225 millimeters. | ||||||

17 | The tire size was designed to fit rims or wheels that are 17 inches in diameter. | ||||||

100 | This tire has a load index of 100, which means it's capable of carrying a load of 1760 pounds (800 kg) or less. A higher number means the tire can carry more weight. A lower number means the opposite. | ||||||

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

## 18-Inch Rims

### 2011 GMC Terrain

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

Trim Options:

### SLESLT

## P235/55R18 99

### Simplified Size: 235-55-18

Simplified size is useful for shopping and buying tires.

The original tire size for your 2011 GMC Terrain is **P235/55R18 99T**. A color-coded explanation of the 2011 GMC Terrain's tire size is shown below.

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

235 | This number indicates that your tire has a width of 235 millimeters. | ||||||

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

99 | This tire has a load index of 99, which means it's capable of carrying a load of 1705 pounds (775 kg) or less. A higher number means the tire can carry more weight. A lower number means the opposite. | ||||||

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

## 19-Inch Rims

### 2011 GMC Terrain

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

Trim Options:

### SLESLT

## P235/55R19 101

### Simplified Size: 235-55-19

Simplified size is useful for shopping and buying tires.

The original tire size for your 2011 GMC Terrain is **P235/55R19 101H**. A color-coded explanation of the 2011 GMC Terrain's tire size is shown below.

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

235 | This number indicates that your tire has a width of 235 millimeters. | ||||||

19 | The tire size was designed to fit rims or wheels that are 19 inches in diameter. | ||||||

101 | This tire has a load index of 101, which means it's capable of carrying a load of 1815 pounds (825 kg) or less. A higher number means the tire can carry more weight. A lower number means the opposite. | ||||||

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 129 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 H, which means 130 mph (210 km/h) is the maximum speed that can be sustained for 10 minutes. A higher speed becomes dangerous. |