# 2018 Dodge Challenger Tire Size

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

## How to Determine Rim Size

Check your existing tires. Your Dodge Challenger'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 Dodge Challenger

There are multiple tire sizes for your 2018 Dodge Challenger 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 2018 Dodge Challenger.

Trim Options:

### SXT

## P235/55R18 99

### Simplified Size: 235-55-18

Simplified size is useful for shopping and buying tires.

The original tire size for your 2018 Dodge Challenger is **P235/55R18 99V**. A color-coded explanation of the 2018 Dodge Challenger's tire size is shown below.

P | This letter denotes the intended use of the tire.
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235 | This number indicates that your tire has a width of 235 millimeters. | ||||||

55 | This number means that your tire has an aspect ratio of 55%. In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 55% of the width. In this case, the sidewall height works out to be 129 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. | ||||||

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. | ||||||

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:

### SRT Demon

## P315/40R18/LL 102

### Simplified Size: 315-40-18

Simplified size is useful for shopping and buying tires.

The original tire size for your 2018 Dodge Challenger is **P315/40R18/LL 102W**. A color-coded explanation of the 2018 Dodge Challenger's tire size is shown below.

P | This letter denotes the intended use of the tire.
| ||||||

315 | This number indicates that your tire has a width of 315 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 126 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. | ||||||

LL | The mark of LL means light load. The tire is for light usage and loads. | ||||||

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 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

### 2018 Dodge Challenger

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

Trim Options:

### GT

## 235/55R19 101

### Simplified Size: 235-55-19

Simplified size is useful for shopping and buying tires.

The original tire size for your 2018 Dodge Challenger is **235/55R19 101H**. A color-coded explanation of the 2018 Dodge Challenger's tire size is shown below.

235 | This number indicates that your tire has a width of 235 millimeters. | ||||||

55 | This number means that your tire has an aspect ratio of 55%. In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 55% of the width. In this case, the sidewall height works out to be 129 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 H, which means 130 mph (210 km/h) is the maximum speed that can be sustained for 10 minutes. A higher speed becomes dangerous. |

## 20-Inch Rims

### 2018 Dodge Challenger

There are multiple tire sizes for your 2018 Dodge Challenger 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 2018 Dodge Challenger.

Trim Options:

### 392 Hemi Scat Pack ShakerR/TR/T PlusR/T Plus ShakerR/T ShakerSXTSXT Plus

## 245/45R20 99

### Simplified Size: 245-45-20

Simplified size is useful for shopping and buying tires.

The original tire size for your 2018 Dodge Challenger is **245/45R20 99V**. A color-coded explanation of the 2018 Dodge Challenger'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 |
| ||||||

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

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:

### 392 Hemi Scat Pack ShakerR/TR/T PlusR/T Plus ShakerR/T Scat PackR/T ShakerSXTSXT PlusT/AT/A Plus

## 245/45ZR20 99

### Simplified Size: 245-45-20

Simplified size is useful for shopping and buying tires.

The original tire size for your 2018 Dodge Challenger is **245/45ZR20 99Y**. A color-coded explanation of the 2018 Dodge Challenger'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. | ||||||

Z | This tire has a speed class of Z, which means it's part of an elite speed class of 149 mph or more (240 km/h). A tire's speed class is less specific than the speed rating. | ||||||

R |
| ||||||

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

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:

### R/T Scat PackSRT 392SRT HellcatT/A 392

## 275/40ZR20/XL (106 )

### Simplified Size: 275-40-20

Simplified size is useful for shopping and buying tires.

The original tire size for your 2018 Dodge Challenger is **275/40ZR20/XL (106Y)**. A color-coded explanation of the 2018 Dodge Challenger'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. | ||||||

Z | This tire has a speed class of Z, which means it's part of an elite speed class of 149 mph or more (240 km/h). A tire's speed class is less specific than the speed rating. | ||||||

R |
| ||||||

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. | ||||||

106 | This tire has a load index of 106, which means it's capable of carrying a load of 2090 pounds (950 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:

### SRT Hellcat Widebody

## 305/35ZR20/XL (107 )

### Simplified Size: 305-35-20

Simplified size is useful for shopping and buying tires.

The original tire size for your 2018 Dodge Challenger is **305/35ZR20/XL (107Y)**. A color-coded explanation of the 2018 Dodge Challenger's tire size is shown below.

305 | This number indicates that your tire has a width of 305 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 106 millimeters. | ||||||

Z | This tire has a speed class of Z, which means it's part of an elite speed class of 149 mph or more (240 km/h). A tire's speed class is less specific than the speed rating. | ||||||

R |
| ||||||

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. | ||||||

107 | This tire has a load index of 107, which means it's capable of carrying a load of 2145 pounds (975 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. |