2009 BMW 528i xDrive Tire Size

Your BMW was manufactured with different tire sizes.  To determine the best tire size for your specific 2009 BMW 528i xDrive, we first need to determine your rim size.  Please review the information below.

How to Determine Rim Size

Check your existing tires.  Your BMW 528i xDrive'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

2009 BMW 528i xDrive

 

The original tire size for your 2009 BMW 528i xDrive is listed below. Tap on the box to view a color-coded explanation of your BMW 528i xDrive's' tire size.

225/50R17 94W

Simplified Size:  225-50-17

Simplified size is useful for shopping and buying tires.

The original tire size for your 2009 BMW 528i xDrive is 225/50R17 94W.  A color-coded explanation of the 2009 BMW 528i xDrive's tire size is shown below.

225

This number indicates that your tire has a width of 225 millimeters.

17

The tire size was designed to fit rims or wheels that are 17 inches in diameter.

94

This tire has a load index of 94, which means it's capable of carrying a load of 1474 pounds (670 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 112 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
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.

18-Inch Rims

2009 BMW 528i xDrive

 

Your 2009 BMW 528i xDrive 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 2009 BMW 528i xDrive.

Trim Options:

w/Sport Pkg.

245/40R18 93W

Simplified Size:  245-40-18

Simplified size is useful for shopping and buying tires.

The original tire size for your 2009 BMW 528i xDrive is 245/40R18 93W.  A color-coded explanation of the 2009 BMW 528i xDrive's tire size is shown below.

245

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

18

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

93

This tire has a load index of 93, which means it's capable of carrying a load of 1430 pounds (650 kg) or less.  A higher number means the tire can carry more weight.  A lower number means the opposite.

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 98 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
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:

w/Sport Pkg.

245/40R18 93Y

Simplified Size:  245-40-18

Simplified size is useful for shopping and buying tires.

The original tire size for your 2009 BMW 528i xDrive is 245/40R18 93Y.  A color-coded explanation of the 2009 BMW 528i xDrive's tire size is shown below.

245

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

18

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

93

This tire has a load index of 93, which means it's capable of carrying a load of 1430 pounds (650 kg) or less.  A higher number means the tire can carry more weight.  A lower number means the opposite.

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 98 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
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.