2018 BMW X5 Tire Size

Your BMW was manufactured with different tire sizes.  To determine the best tire size for your specific 2018 BMW X5, we first need to determine your rim size.  Please review the information below.

How to Determine Rim Size

Check your existing tires.  Your BMW X5'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.

19-Inch Rims

2018 BMW X5

 

The original tire size for your 2018 BMW X5 is listed below. Tap on the box to view a color-coded explanation of your BMW X5's' tire size.

Trim Options:

sDrive35ixDrive35dxDrive35ixDrive40exDrive50i

255/50R19/XL 107H

Simplified Size:  255-50-19

Simplified size is useful for shopping and buying tires.

The original tire size for your 2018 BMW X5 is 255/50R19/XL 107H.  A color-coded explanation of the 2018 BMW X5's tire size is shown below.

255

This number indicates that your tire has a width of 255 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 127 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
19

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

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.

20-Inch Rims

2018 BMW X5

 

There are multiple tire sizes for your 2018 BMW X5 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 BMW X5.

Trim Options:

sDrive35ixDrive35dxDrive35ixDrive40exDrive50i

275/40R20/XL 106W(Front)

Simplified Size:  275-40-20

Simplified size is useful for shopping and buying tires.

The original tire size for your 2018 BMW X5 is 275/40R20/XL 106W (Front).  A color-coded explanation of the 2018 BMW X5'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.

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.

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.

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:

sDrive35ixDrive35dxDrive35ixDrive40exDrive50i

315/35R20/XL 110W(Rear)

Simplified Size:  315-35-20

Simplified size is useful for shopping and buying tires.

The original tire size for your 2018 BMW X5 is 275/40R20/XL 106W (Front).  A color-coded explanation of the 2018 BMW X5's tire size is shown below.

315

This number indicates that your tire has a width of 315 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 110 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.

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.

110

This tire has a load index of 110, which means it's capable of carrying a load of 2332 pounds (1060 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:

M

285/40R20 104Y(Front)

Simplified Size:  285-40-20

Simplified size is useful for shopping and buying tires.

The original tire size for your 2018 BMW X5 is 285/40R20 104Y (Front).  A color-coded explanation of the 2018 BMW X5's tire size is shown below.

285

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

104

This tire has a load index of 104, which means it's capable of carrying a load of 1980 pounds (900 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.

Trim Options:

M

325/35R20 108Y(Rear)

Simplified Size:  325-35-20

Simplified size is useful for shopping and buying tires.

The original tire size for your 2018 BMW X5 is 285/40R20 104Y (Front).  A color-coded explanation of the 2018 BMW X5's tire size is shown below.

325

This number indicates that your tire has a width of 325 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 113 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.

108

This tire has a load index of 108, which means it's capable of carrying a load of 2200 pounds (1000 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.

21-Inch Rims

2018 BMW X5

 

There are multiple tire sizes for your 2018 BMW X5 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 BMW X5.

Trim Options:

xDrive35dxDrive35ixDrive50i

285/35R21/XL 105Y(Front)

Simplified Size:  285-35-21

Simplified size is useful for shopping and buying tires.

The original tire size for your 2018 BMW X5 is 285/35R21/XL 105Y (Front).  A color-coded explanation of the 2018 BMW X5's tire size is shown below.

285

This number indicates that your tire has a width of 285 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 99 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.

105

This tire has a load index of 105, which means it's capable of carrying a load of 2035 pounds (925 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.

Trim Options:

xDrive35dxDrive35ixDrive50i

325/30R21/XL 108Y(Rear)

Simplified Size:  325-30-21

Simplified size is useful for shopping and buying tires.

The original tire size for your 2018 BMW X5 is 285/35R21/XL 105Y (Front).  A color-coded explanation of the 2018 BMW X5'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.

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.

108

This tire has a load index of 108, which means it's capable of carrying a load of 2200 pounds (1000 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.

Trim Options:

M

285/35ZR21/XL 105Y(Front)

Simplified Size:  285-35-21

Simplified size is useful for shopping and buying tires.

The original tire size for your 2018 BMW X5 is 285/35ZR21/XL 105Y (Front).  A color-coded explanation of the 2018 BMW X5's tire size is shown below.

285

This number indicates that your tire has a width of 285 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 99 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
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.

105

This tire has a load index of 105, which means it's capable of carrying a load of 2035 pounds (925 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.

Trim Options:

M

325/30ZR21/XL 108Y(Rear)

Simplified Size:  325-30-21

Simplified size is useful for shopping and buying tires.

The original tire size for your 2018 BMW X5 is 285/35ZR21/XL 105Y (Front).  A color-coded explanation of the 2018 BMW X5'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.

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.

108

This tire has a load index of 108, which means it's capable of carrying a load of 2200 pounds (1000 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.