2007 Audi A3 Tire Size

There are multiple tire sizes for your 2007 Audi A3 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 2007 Audi A3.

Trim Options:

2.0T

225/45R17 91Y

Simplified Size:  225-45-17

Simplified size is useful for shopping and buying tires.

The original tire size for your 2007 Audi A3 is 225/45R17 91Y.  A color-coded explanation of the 2007 Audi A3'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.

Trim Options:

2.0T w/Sport Pkg.

225/45ZR17 91W

Simplified Size:  225-45-17

Simplified size is useful for shopping and buying tires.

The original tire size for your 2007 Audi A3 is 225/45ZR17 91W.  A color-coded explanation of the 2007 Audi A3'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.

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.

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
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.