# 2010 Mercedes-Benz S550 Tire Size

Your Mercedes-Benz was manufactured with different tire sizes. To determine the best tire size for your specific 2010 Mercedes-Benz S550, 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 S550'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

### 2010 Mercedes-Benz S550

The original tire size for your 2010 Mercedes-Benz S550 is listed below. Tap on the box to view a color-coded explanation of your Mercedes-Benz S550's' tire size.

Trim Options:

### 4MaticBase

## 255/45R18 99

### Simplified Size: 255-45-18

Simplified size is useful for shopping and buying tires.

The original tire size for your 2010 Mercedes-Benz S550 is **255/45R18 99H**. A color-coded explanation of the 2010 Mercedes-Benz S550's tire size is shown below.

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

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

## 19-Inch Rims

### 2010 Mercedes-Benz S550

There are multiple tire sizes for your 2010 Mercedes-Benz S550 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 2010 Mercedes-Benz S550.

Trim Options:

### 4Matic w/Sport Pkg.

## 255/40R19 96

### Simplified Size: 255-40-19

Simplified size is useful for shopping and buying tires.

The original tire size for your 2010 Mercedes-Benz S550 is **255/40R19 96Y**. A color-coded explanation of the 2010 Mercedes-Benz S550's tire size is shown below.

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

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

96 | This tire has a load index of 96, which means it's capable of carrying a load of 1562 pounds (710 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 102 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 Y, which means 186 mph (300 km/h) is the maximum speed that can be sustained for 10 minutes. A higher speed becomes dangerous. |

## 275/40R19 101(Rear)

### Simplified Size: 255-40-19

Simplified size is useful for shopping and buying tires.

The original tire size for your 2010 Mercedes-Benz S550 is **255/40R19/RF 100V (Front)**. A color-coded explanation of the 2010 Mercedes-Benz S550'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 V, which means 149 mph (240 km/h) is the maximum speed that can be sustained for 10 minutes. A higher speed becomes dangerous. |

## 255/40R19/RF 100(Front)

### Simplified Size: 275-40-19

Simplified size is useful for shopping and buying tires.

The original tire size for your 2010 Mercedes-Benz S550 is **255/40R19/RF 100V (Front)**. A color-coded explanation of the 2010 Mercedes-Benz S550's tire size is shown below.

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

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

RF | The mark of RF indicates that the tire is reinforced. This means it can handle a higher inflation pressure than a standard tire, which increases its maximum load. | ||||||

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. | ||||||

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 102 millimeters. | ||||||

R |
| ||||||

This tire has a speed rating of V, which means 149 mph (240 km/h) is the maximum speed that can be sustained for 10 minutes. A higher speed becomes dangerous. |

Trim Options:

### 4Matic w/Sport Pkg.

## 255/40R19/RF 100

### Simplified Size: 255-40-19

Simplified size is useful for shopping and buying tires.

The original tire size for your 2010 Mercedes-Benz S550 is **255/40R19/RF 100Y**. A color-coded explanation of the 2010 Mercedes-Benz S550's tire size is shown below.

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

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

RF | The mark of RF indicates that the tire is reinforced. This means it can handle a higher inflation pressure than a standard tire, which increases its maximum load. | ||||||

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. | ||||||

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 102 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:

### w/Sport Pkg.

## 275/40R19 101(Rear)

### Simplified Size: 255-40-19

Simplified size is useful for shopping and buying tires.

The original tire size for your 2010 Mercedes-Benz S550 is **255/40R19/RF 100Y (Front)**. A color-coded explanation of the 2010 Mercedes-Benz S550'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:

### w/Sport Pkg.

## 255/40R19/RF 100(Front)

### Simplified Size: 275-40-19

Simplified size is useful for shopping and buying tires.

The original tire size for your 2010 Mercedes-Benz S550 is **255/40R19/RF 100Y (Front)**. A color-coded explanation of the 2010 Mercedes-Benz S550's tire size is shown below.

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

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

RF | The mark of RF indicates that the tire is reinforced. This means it can handle a higher inflation pressure than a standard tire, which increases its maximum load. | ||||||

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. | ||||||

40 | |||||||

R |
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