2004 Mercedes-Benz SL55 AMG Tire Size

The original tire size for your 2004 Mercedes-Benz SL55 AMG is listed below. Tap on the box to view a color-coded explanation of the best Mercedes-Benz SL55 AMG tire size.

285/35R18 97Y(Rear)

Simplified Size:  255-40-18

Simplified size is useful for shopping and buying tires.

The original tire size for your 2004 Mercedes-Benz SL55 AMG is 255/40R18 95Y (Front).  A color-coded explanation of the 2004 Mercedes-Benz SL55 AMG's tire size is shown below.

285

This number indicates that your tire has a width of 285 millimeters.

18

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

97

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.

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 99 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.

255/40R18 95Y(Front)

Simplified Size:  285-35-18

Simplified size is useful for shopping and buying tires.

The original tire size for your 2004 Mercedes-Benz SL55 AMG is 255/40R18 95Y (Front).  A color-coded explanation of the 2004 Mercedes-Benz SL55 AMG's tire size is shown below.

255

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

18

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

95

This tire has a load index of 95, which means it's capable of carrying a load of 1518 pounds (690 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 102 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.