# 2017 Ford GT Tire Size

The original tire size for your 2017 Ford GT is listed below. Tap on the box to view a color-coded explanation of the best Ford GT tire size.

## 245/35ZR20/XL (95 )(Front)

### Simplified Size: 245-35-20

Simplified size is useful for shopping and buying tires.

The original tire size for your 2017 Ford GT is **245/35ZR20/XL (95Y) (Front)**. A color-coded explanation of the 2017 Ford GT'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. | ||||||

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 | 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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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. | ||||||

95 | This tire has a load index of 95, which means it's capable of carrying a load of 1518 pounds (690 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. |

## 325/30ZR20/XL (106 )(Rear)

### Simplified Size: 325-30-20

Simplified size is useful for shopping and buying tires.

The original tire size for your 2017 Ford GT is **245/35ZR20/XL (95Y) (Front)**. A color-coded explanation of the 2017 Ford GT's tire size is shown below.

325 | This number indicates that your tire has a width of 325 millimeters. | ||||||

30 | This number means that your tire has an aspect ratio of 30%. In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 30% of the width. In this case, the sidewall height works out to be 97 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 | This letter denotes how your tire was constructed. Radial is the standard construction method for about 99% of all tires sold today.
| ||||||

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. |