2004 Audi TT Tire Size

Your Audi was manufactured with different tire sizes.  To determine the best tire size for your specific 2004 Audi TT, we first need to determine your rim size.  Please review the information below.

How to Determine Rim Size

Check your existing tires.  Your Audi TT'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

2004 Audi TT

 

The original tire size for your 2004 Audi TT is listed below. Tap on the box to view a color-coded explanation of your Audi TT's' tire size.

Trim Options:

180 HP225 HP

225/45R17 91Y

Simplified Size:  225-45-17

Simplified size is useful for shopping and buying tires.

The original tire size for your 2004 Audi TT is 225/45R17 91Y.  A color-coded explanation of the 2004 Audi TT'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.

91

This tire has a load index of 91, which means it's capable of carrying a load of 1353 pounds (615 kg) or less.  A higher number means the tire can carry more weight.  A lower number means the opposite.

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 101 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.

18-Inch Rims

2004 Audi TT

 

There are multiple tire sizes for your 2004 Audi TT 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 2004 Audi TT.

Trim Options:

225 HP250 HP

225/40ZR18 88Y

Simplified Size:  225-40-18

Simplified size is useful for shopping and buying tires.

The original tire size for your 2004 Audi TT is 225/40ZR18 88Y.  A color-coded explanation of the 2004 Audi TT's tire size is shown below.

225

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

18

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

88

This tire has a load index of 88, which means it's capable of carrying a load of 1232 pounds (560 kg) or less.  A higher number means the tire can carry more weight.  A lower number means the opposite.

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.

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 90 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.

Trim Options:

250 HP

225/40ZR18/XL 92Y

Simplified Size:  225-40-18

Simplified size is useful for shopping and buying tires.

The original tire size for your 2004 Audi TT is 225/40ZR18/XL 92Y.  A color-coded explanation of the 2004 Audi TT's tire size is shown below.

225

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

18

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

92

This tire has a load index of 92, which means it's capable of carrying a load of 1386 pounds (630 kg) or less.  A higher number means the tire can carry more weight.  A lower number means the opposite.

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.

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 90 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.