# 2010 Cadillac CTS Tire Size

Your Cadillac was manufactured with different tire sizes. To determine the best tire size for your specific 2010 Cadillac CTS, we first need to determine your rim size. Please review the information below.

## How to Determine Rim Size

Check your existing tires. Your Cadillac CTS'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.

## 17-Inch Rims

### 2010 Cadillac CTS

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

Trim Options:

### 3.0Luxury

## P235/55R17 98

### Simplified Size: 235-55-17

Simplified size is useful for shopping and buying tires.

The original tire size for your 2010 Cadillac CTS is **P235/55R17 98H**. A color-coded explanation of the 2010 Cadillac CTS'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. | ||||||

17 | The tire size was designed to fit rims or wheels that are 17 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. | ||||||

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.
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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. |

## 18-Inch Rims

### 2010 Cadillac CTS

There are multiple tire sizes for your 2010 Cadillac CTS 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 Cadillac CTS.

Trim Options:

### Premium

## 235/50ZR18 97

### Simplified Size: 235-50-18

Simplified size is useful for shopping and buying tires.

The original tire size for your 2010 Cadillac CTS is **235/50ZR18 97Y**. A color-coded explanation of the 2010 Cadillac CTS's tire size is shown below.

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

18 | The tire size was designed to fit rims or wheels that are 18 inches in diameter. | ||||||

97 | This tire has a load index of 97, which means it's capable of carrying a load of 1606 pounds (730 kg) or less. A higher number means the tire can carry more weight. A lower number means the opposite. | ||||||

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. | ||||||

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 117 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 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:

### 3.0 w/Performance Pkg.3.6Performance

## P235/50R18 97

### Simplified Size: 235-50-18

Simplified size is useful for shopping and buying tires.

The original tire size for your 2010 Cadillac CTS is **P235/50R18 97V**. A color-coded explanation of the 2010 Cadillac CTS's tire size is shown below.

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

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

18 | The tire size was designed to fit rims or wheels that are 18 inches in diameter. | ||||||

97 | This tire has a load index of 97, which means it's capable of carrying a load of 1606 pounds (730 kg) or less. A higher number means the tire can carry more weight. A lower number means the opposite. | ||||||

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 117 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. |

## 19-Inch Rims

### 2010 Cadillac CTS

There are multiple tire sizes for your 2010 Cadillac CTS 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 Cadillac CTS.

Trim Options:

### 3.6 w/Performance Pkg.

## 245/45ZR19 98

### Simplified Size: 245-45-19

Simplified size is useful for shopping and buying tires.

The original tire size for your 2010 Cadillac CTS is **245/45ZR19 98Y**. A color-coded explanation of the 2010 Cadillac CTS's tire size is shown below.

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

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. | ||||||

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. | ||||||

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 |
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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:

### V

## 285/35ZR19 (99 )(Rear)

### Simplified Size: 255-40-19

Simplified size is useful for shopping and buying tires.

The original tire size for your 2010 Cadillac CTS is **255/40ZR19 96(Y) (Front)**. A color-coded explanation of the 2010 Cadillac CTS's tire size is shown below.

285 | This number indicates that your tire has a width of 285 millimeters. | ||||||

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

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. | ||||||

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 99 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:

### V

## 255/40ZR19 (96 )(Front)

### Simplified Size: 285-35-19

Simplified size is useful for shopping and buying tires.

The original tire size for your 2010 Cadillac CTS is **255/40ZR19 96(Y) (Front)**. A color-coded explanation of the 2010 Cadillac CTS'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. | ||||||

Z | |||||||

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 |
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