# 2018 Buick Enclave Tire Size

Your Buick was manufactured with different tire sizes. To determine the best tire size for your specific 2018 Buick Enclave, we first need to determine your rim size. Please review the information below.

## How to Determine Rim Size

Check your existing tires. Your Buick Enclave'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

### 2018 Buick Enclave

The original tire size for your 2018 Buick Enclave is listed below. Tap on the box to view a color-coded explanation of your Buick Enclave's' tire size.

## 255/65R18 111

### Simplified Size: 255-65-18

Simplified size is useful for shopping and buying tires.

The original tire size for your 2018 Buick Enclave is **255/65R18 111T**. A color-coded explanation of the 2018 Buick Enclave's tire size is shown below.

255 | This number indicates that your tire has a width of 255 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 165 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. | ||||||

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. |

## 20-Inch Rims

### 2018 Buick Enclave

The original tire size for your 2018 Buick Enclave is listed below. Tap on the box to view a color-coded explanation of your Buick Enclave's' tire size.

Trim Options:

### AvenirEssencePremium

## 255/55R20 107

### Simplified Size: 255-55-20

Simplified size is useful for shopping and buying tires.

The original tire size for your 2018 Buick Enclave is **255/55R20 107H**. A color-coded explanation of the 2018 Buick Enclave's tire size is shown below.

255 | This number indicates that your tire has a width of 255 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 140 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. | ||||||

107 | This tire has a load index of 107, which means it's capable of carrying a load of 2145 pounds (975 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 H, which means 130 mph (210 km/h) is the maximum speed that can be sustained for 10 minutes. A higher speed becomes dangerous. |