2018 Audi SQ5 Tire Size

Your Audi was manufactured with different tire sizes.  To determine the best tire size for your specific 2018 Audi SQ5, we first need to determine your rim size.  Please review the information below.

How to Determine Rim Size

Check your existing tires.  Your Audi SQ5'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.

20-Inch Rims

2018 Audi SQ5

 

Your 2018 Audi SQ5 was manufactured with multiple tire sizes.  Choose a tire size below to get a color-coded explanation of the differences.  Then pick the best tire size for your 2018 Audi SQ5.

Trim Options:

Premium PlusPrestige

255/45R20 101H

Simplified Size:  255-45-20

Simplified size is useful for shopping and buying tires.

The original tire size for your 2018 Audi SQ5 is 255/45R20 101H.  A color-coded explanation of the 2018 Audi SQ5's tire size is shown below.

255

This number indicates that your tire has a width of 255 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 114 millimeters.

R

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

RRadial
BBias Belt
DDiagonal
20

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

H

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:

Premium PlusPrestige

255/45R20 101W

Simplified Size:  255-45-20

Simplified size is useful for shopping and buying tires.

The original tire size for your 2018 Audi SQ5 is 255/45R20 101W.  A color-coded explanation of the 2018 Audi SQ5's tire size is shown below.

255

This number indicates that your tire has a width of 255 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 114 millimeters.

R

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

RRadial
BBias Belt
DDiagonal
20

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

W

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.

Trim Options:

Premium PlusPrestige

255/45ZR20 101W

Simplified Size:  255-45-20

Simplified size is useful for shopping and buying tires.

The original tire size for your 2018 Audi SQ5 is 255/45ZR20 101W.  A color-coded explanation of the 2018 Audi SQ5's tire size is shown below.

255

This number indicates that your tire has a width of 255 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 114 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.

RRadial
BBias Belt
DDiagonal
20

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

W

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.

21-Inch Rims

2018 Audi SQ5

 

The original tire size for your 2018 Audi SQ5 is listed below. Tap on the box to view a color-coded explanation of your Audi SQ5's' tire size.

Trim Options:

Premium PlusPrestige

255/40R21/XL 102Y

Simplified Size:  255-40-21

Simplified size is useful for shopping and buying tires.

The original tire size for your 2018 Audi SQ5 is 255/40R21/XL 102Y.  A color-coded explanation of the 2018 Audi SQ5's tire size is shown below.

255

This number indicates that your tire has a width of 255 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 102 millimeters.

R

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

RRadial
BBias Belt
DDiagonal
21

The tire size was designed to fit rims or wheels that are 21 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.

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.

Y

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.