# 2019 Mercedes-Benz S450 Tire Size

Your Mercedes-Benz was manufactured with different tire sizes. To determine the best tire size for your specific 2019 Mercedes-Benz S450, we first need to determine your rim size. Please review the information below.

## How to Determine Rim Size

Check your existing tires. Your Mercedes-Benz S450'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

### 2019 Mercedes-Benz S450

Your 2019 Mercedes-Benz S450 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 2019 Mercedes-Benz S450.

Trim Options:

### 4MaticBase

## 245/50R18 100

### Simplified Size: 245-50-18

Simplified size is useful for shopping and buying tires.

The original tire size for your 2019 Mercedes-Benz S450 is **245/50R18 100H**. A color-coded explanation of the 2019 Mercedes-Benz S450's tire size is shown below.

245 | This number indicates that your tire has a width of 245 millimeters. | ||||||

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

50 | This number means that your tire has an aspect ratio of 50%. In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 50% of the width. In this case, the sidewall height works out to be 122 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. |

Trim Options:

### 4MaticBase

## 245/50R18 100

### Simplified Size: 245-50-18

Simplified size is useful for shopping and buying tires.

The original tire size for your 2019 Mercedes-Benz S450 is **245/50R18 100W**. A color-coded explanation of the 2019 Mercedes-Benz S450's tire size is shown below.

245 | This number indicates that your tire has a width of 245 millimeters. | ||||||

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

50 | This number means that your tire has an aspect ratio of 50%. In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 50% of the width. In this case, the sidewall height works out to be 122 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 W, which means 167 mph (270 km/h) is the maximum speed that can be sustained for 10 minutes. A higher speed becomes dangerous. |

## 19-Inch Rims

### 2019 Mercedes-Benz S450

Your 2019 Mercedes-Benz S450 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 2019 Mercedes-Benz S450.

Trim Options:

### 4MaticBase

## 275/40R19 101(Rear)

### Simplified Size: 245-45-19

Simplified size is useful for shopping and buying tires.

The original tire size for your 2019 Mercedes-Benz S450 is **245/45R19/XL 102H (Front)**. A color-coded explanation of the 2019 Mercedes-Benz S450's tire size is shown below.

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

40 | This number means that your tire has an aspect ratio of 40%. In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 40% of the width. In this case, the sidewall height works out to be 110 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. |

Trim Options:

### 4MaticBase

## 245/45R19/XL 102(Front)

### Simplified Size: 275-40-19

Simplified size is useful for shopping and buying tires.

The original tire size for your 2019 Mercedes-Benz S450 is **245/45R19/XL 102H (Front)**. A color-coded explanation of the 2019 Mercedes-Benz S450's tire size is shown below.

245 | This number indicates that your tire has a width of 245 millimeters. | ||||||

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

102 | This tire has a load index of 102, which means it's capable of carrying a load of 1870 pounds (850 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 110 millimeters. | ||||||

R |
| ||||||

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. |

Trim Options:

### 4MaticBase

## 275/40R19 101(Rear)

### Simplified Size: 245-45-19

Simplified size is useful for shopping and buying tires.

The original tire size for your 2019 Mercedes-Benz S450 is **245/45R19/XL 102Y (Front)**. A color-coded explanation of the 2019 Mercedes-Benz S450's tire size is shown below.

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

40 | This number means that your tire has an aspect ratio of 40%. In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 40% of the width. In this case, the sidewall height works out to be 110 millimeters. | ||||||

R |
| ||||||

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:

### 4MaticBase

## 245/45R19/XL 102(Front)

### Simplified Size: 275-40-19

Simplified size is useful for shopping and buying tires.

The original tire size for your 2019 Mercedes-Benz S450 is **245/45R19/XL 102Y (Front)**. A color-coded explanation of the 2019 Mercedes-Benz S450's tire size is shown below.

245 | This number indicates that your tire has a width of 245 millimeters. | ||||||

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

102 | This tire has a load index of 102, which means it's capable of carrying a load of 1870 pounds (850 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 110 millimeters. | ||||||

R |
| ||||||

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. |

## 20-Inch Rims

### 2019 Mercedes-Benz S450

The original tire size for your 2019 Mercedes-Benz S450 is listed below. Tap on the box to view a color-coded explanation of your Mercedes-Benz S450's' tire size.

Trim Options:

### 4MaticBase

## 275/35R20/XL 102(Rear)

### Simplified Size: 245-40-20

Simplified size is useful for shopping and buying tires.

The original tire size for your 2019 Mercedes-Benz S450 is **245/40R20/XL 99Y (Front)**. A color-coded explanation of the 2019 Mercedes-Benz S450's tire size is shown below.

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

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

102 | This tire has a load index of 102, which means it's capable of carrying a load of 1870 pounds (850 kg) or less. A higher number means the tire can carry more weight. A lower number means the opposite. | ||||||

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 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:

### 4MaticBase

## 245/40R20/XL 99(Front)

### Simplified Size: 275-35-20

Simplified size is useful for shopping and buying tires.

The original tire size for your 2019 Mercedes-Benz S450 is **245/40R20/XL 99Y (Front)**. A color-coded explanation of the 2019 Mercedes-Benz S450's tire size is shown below.

245 | This number indicates that your tire has a width of 245 millimeters. | ||||||

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

XL | |||||||

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. | ||||||

40 | This number means that your tire has an aspect ratio of 40%. In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 40% of the width. In this case, the sidewall height works out to be 98 millimeters. | ||||||

R |
| ||||||