# 2018 BMW 740e xDrive Tire Size

Your BMW was manufactured with different tire sizes. To determine the best tire size for your specific 2018 BMW 740e xDrive, we first need to determine your rim size. Please review the information below.

## How to Determine Rim Size

Check your existing tires. Your BMW 740e'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 BMW 740e xDrive

The original tire size for your 2018 BMW 740e xDrive is listed below. Tap on the box to view a color-coded explanation of your BMW 740e's' tire size.

Trim Options:

### iPerformance

## 245/50R18 100

### Simplified Size: 245-50-18

Simplified size is useful for shopping and buying tires.

The original tire size for your 2018 BMW 740e xDrive is **245/50R18 100V**. A color-coded explanation of the 2018 BMW 740e xDrive's tire size is shown below.

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

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.
| ||||||

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. | ||||||

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. |

## 19-Inch Rims

### 2018 BMW 740e xDrive

Your 2018 BMW 740e xDrive 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 2018 BMW 740e xDrive.

Trim Options:

### iPerformance

## 245/45R19 98(Front)

### Simplified Size: 245-45-19

Simplified size is useful for shopping and buying tires.

The original tire size for your 2018 BMW 740e xDrive is **245/45R19 98Y (Front)**. A color-coded explanation of the 2018 BMW 740e xDrive's tire size is shown below.

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

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

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

98 | This tire has a load index of 98, which means it's capable of carrying a load of 1650 pounds (750 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:

### iPerformance

## 275/40R19 101(Rear)

### Simplified Size: 275-40-19

Simplified size is useful for shopping and buying tires.

The original tire size for your 2018 BMW 740e xDrive is **245/45R19 98Y (Front)**. A color-coded explanation of the 2018 BMW 740e xDrive's tire size is shown below.

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

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.
| ||||||

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. | ||||||

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:

### iPerformance

## 245/45R19/XL 102

### Simplified Size: 245-45-19

Simplified size is useful for shopping and buying tires.

The original tire size for your 2018 BMW 740e xDrive is **245/45R19/XL 102V**. A color-coded explanation of the 2018 BMW 740e xDrive's tire size is shown below.

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

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 |
| ||||||

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. | ||||||

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. |