# 2018 Smart Fortwo Tire Size

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

## How to Determine Rim Size

Check your existing tires. Your Smart Fortwo'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.

## 15-Inch Rims

### 2018 Smart Fortwo

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

Trim Options:

### Electric Drive

## 165/65R15 81(Front)

### Simplified Size: 165-65-15

Simplified size is useful for shopping and buying tires.

The original tire size for your 2018 Smart Fortwo is **165/65R15 81T (Front)**. A color-coded explanation of the 2018 Smart Fortwo's tire size is shown below.

165 | This number indicates that your tire has a width of 165 millimeters. | ||||||

65 | This number means that your tire has an aspect ratio of 65%. In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 65% of the width. In this case, the sidewall height works out to be 107 millimeters. | ||||||

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

15 | The tire size was designed to fit rims or wheels that are 15 inches in diameter. | ||||||

81 | This tire has a load index of 81, which means it's capable of carrying a load of 1016 pounds (462 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 T, which means 118 mph (190 km/h) is the maximum speed that can be sustained for 10 minutes. A higher speed becomes dangerous. |

Trim Options:

### Electric Drive

## 185/60R15 84(Rear)

### Simplified Size: 185-60-15

Simplified size is useful for shopping and buying tires.

The original tire size for your 2018 Smart Fortwo is **165/65R15 81T (Front)**. A color-coded explanation of the 2018 Smart Fortwo's tire size is shown below.

185 | This number indicates that your tire has a width of 185 millimeters. | ||||||

60 | This number means that your tire has an aspect ratio of 60%. In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 60% of the width. In this case, the sidewall height works out to be 111 millimeters. | ||||||

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

15 | The tire size was designed to fit rims or wheels that are 15 inches in diameter. | ||||||

84 | This tire has a load index of 84, which means it's capable of carrying a load of 1100 pounds (500 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 T, which means 118 mph (190 km/h) is the maximum speed that can be sustained for 10 minutes. A higher speed becomes dangerous. |

## 16-Inch Rims

### 2018 Smart Fortwo

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

Trim Options:

### Electric Drive w/Sport Pkg.

## 185/50R16 81(Front)

### Simplified Size: 185-50-16

Simplified size is useful for shopping and buying tires.

The original tire size for your 2018 Smart Fortwo is **185/50R16 81H (Front)**. A color-coded explanation of the 2018 Smart Fortwo's tire size is shown below.

185 | This number indicates that your tire has a width of 185 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 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.
| ||||||

16 | The tire size was designed to fit rims or wheels that are 16 inches in diameter. | ||||||

81 | This tire has a load index of 81, which means it's capable of carrying a load of 1016 pounds (462 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 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:

### Electric Drive w/Sport Pkg.

## 205/45R16 83(Rear)

### Simplified Size: 205-45-16

Simplified size is useful for shopping and buying tires.

The original tire size for your 2018 Smart Fortwo is **185/50R16 81H (Front)**. A color-coded explanation of the 2018 Smart Fortwo's tire size is shown below.

205 | This number indicates that your tire has a width of 205 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 92 millimeters. | ||||||

R |
| ||||||

16 | The tire size was designed to fit rims or wheels that are 16 inches in diameter. | ||||||

83 | This tire has a load index of 83, which means it's capable of carrying a load of 1071 pounds (487 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 H, which means 130 mph (210 km/h) is the maximum speed that can be sustained for 10 minutes. A higher speed becomes dangerous. |