# 2013 Audi S8 Tire Size

There are multiple tire sizes for your 2013 Audi S8 that depend upon the trim level. Look for your trim level below to get a color-coded explanation of your tire size. Then pick the best tire size for your 2013 Audi S8.

## 265/35R21/XL 101

### Simplified Size: 265-35-21

Simplified size is useful for shopping and buying tires.

The original tire size for your 2013 Audi S8 is **265/35R21/XL 101Y**. A color-coded explanation of the 2013 Audi S8's tire size is shown below.

265 | This number indicates that your tire has a width of 265 millimeters. | ||||||

35 | This number means that your tire has an aspect ratio of 35%. In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 35% of the width. In this case, the sidewall height works out to be 92 millimeters. | ||||||

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

21 | The tire size was designed to fit rims or wheels that are 21 inches in diameter. | ||||||

XL | The mark of XL means extra load. A tire with this designation can handle higher inflation pressures than a regular tire, which increases its maximum load. | ||||||

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. | ||||||

This tire has a speed rating of Y, which means 186 mph (300 km/h) is the maximum speed that can be sustained for 10 minutes. A higher speed becomes dangerous. |

Trim Options:

### (Summer Tires)

## 275/35R21/XL (103 )

### Simplified Size: 275-35-21

Simplified size is useful for shopping and buying tires.

The original tire size for your 2013 Audi S8 is **275/35R21/XL (103Y)**. A color-coded explanation of the 2013 Audi S8's tire size is shown below.

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

35 | This number means that your tire has an aspect ratio of 35%. In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 35% of the width. In this case, the sidewall height works out to be 96 millimeters. | ||||||

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

21 | The tire size was designed to fit rims or wheels that are 21 inches in diameter. | ||||||

XL | The mark of XL means extra load. A tire with this designation can handle higher inflation pressures than a regular tire, which increases its maximum load. | ||||||

103 | This tire has a load index of 103, which means it's capable of carrying a load of 1925 pounds (875 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 Y, which means 186 mph (300 km/h) is the maximum speed that can be sustained for 10 minutes. A higher speed becomes dangerous. |

Trim Options:

### (Summer Tires)

## 275/35R21/XL 103

### Simplified Size: 275-35-21

Simplified size is useful for shopping and buying tires.

The original tire size for your 2013 Audi S8 is **275/35R21/XL 103Y**. A color-coded explanation of the 2013 Audi S8's tire size is shown below.

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

35 | This number means that your tire has an aspect ratio of 35%. In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 35% of the width. In this case, the sidewall height works out to be 96 millimeters. | ||||||

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

21 | The tire size was designed to fit rims or wheels that are 21 inches in diameter. | ||||||

XL | The mark of XL means extra load. A tire with this designation can handle higher inflation pressures than a regular tire, which increases its maximum load. | ||||||

103 | This tire has a load index of 103, which means it's capable of carrying a load of 1925 pounds (875 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 Y, which means 186 mph (300 km/h) is the maximum speed that can be sustained for 10 minutes. A higher speed becomes dangerous. |