# 2013 BMW 135is Tire Size

The original tire size for your 2013 BMW 135is is listed below. Tap on the box to view a color-coded explanation of the best BMW 135is tire size.

Trim Options:

### ConvertibleCoupe

## 215/40R18 85(Front)

### Simplified Size: 215-40-18

Simplified size is useful for shopping and buying tires.

The original tire size for your 2013 BMW 135is is **215/40R18 85Y (Front)**. A color-coded explanation of the 2013 BMW 135is's tire size is shown below.

215 | This number indicates that your tire has a width of 215 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 86 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. | ||||||

85 | This tire has a load index of 85, which means it's capable of carrying a load of 1133 pounds (515 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:

### ConvertibleCoupe

## 245/35R18 88(Rear)

### Simplified Size: 245-35-18

Simplified size is useful for shopping and buying tires.

The original tire size for your 2013 BMW 135is is **215/40R18 85Y (Front)**. A color-coded explanation of the 2013 BMW 135is's tire size is shown below.

245 | This number indicates that your tire has a width of 245 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 85 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. | ||||||

88 | This tire has a load index of 88, which means it's capable of carrying a load of 1232 pounds (560 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. |