2001 BMW M5 Tire Size

The original tire size for your 2001 BMW M5 is listed below. Tap on the box to view a color-coded explanation of the best BMW M5 tire size.

245/40ZR18(Front)

Simplified Size:  245-40-18

Simplified size is useful for shopping and buying tires.

The original tire size for your 2001 BMW M5 is 245/40ZR18 (Front).  A color-coded explanation of the 2001 BMW M5's tire size is shown below.

245

This number indicates that your tire has a width of 245 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 98 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
18

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

275/35ZR18(Rear)

Simplified Size:  275-35-18

Simplified size is useful for shopping and buying tires.

The original tire size for your 2001 BMW M5 is 245/40ZR18 (Front).  A color-coded explanation of the 2001 BMW M5's tire size is shown below.

275

This number indicates that your tire has a width of 275 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 96 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
18

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