2018 Audi S6 Tire Size

The original tire size for your 2018 Audi S6 is listed below. Tap on the box to view a color-coded explanation of the best Audi S6 tire size.

Trim Options:

Premium PlusPrestige

255/35R20/XL 97Y

Simplified Size:  255-35-20

Simplified size is useful for shopping and buying tires.

The original tire size for your 2018 Audi S6 is 255/35R20/XL 97Y.  A color-coded explanation of the 2018 Audi S6's tire size is shown below.


This number indicates that your tire has a width of 255 millimeters.


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 89 millimeters.


This letter denotes how your tire was constructed.  Radial is the standard construction method for about 99% of all tires sold today.

BBias Belt

The tire size was designed to fit rims or wheels that are 20 inches in diameter.


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.


This tire has a load index of 97, which means it's capable of carrying a load of 1606 pounds (730 kg) or less.  A higher number means the tire can carry more weight.  A lower number means the opposite.


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.