2011 Mercedes-Benz E550 Tire Size

This number indicates that your tire has a width of 245 millimeters.

The tire size was designed to fit rims or wheels that are 17 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 99, which means it's capable of carrying a load of 1705 pounds (775 kg) or less.  A higher number means the tire can carry more weight.  A lower number means the opposite.

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 110 millimeters.

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

This tire has a speed rating of H, which means 130 mph (210 km/h) is the maximum speed that can be sustained for 10 minutes.  A higher speed becomes dangerous.

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

The tire size was designed to fit rims or wheels that are 18 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 94, which means it's capable of carrying a load of 1474 pounds (670 kg) or less.  A higher number means the tire can carry more weight.  A lower number means the opposite.

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.

This tire has a speed rating of H, which means 130 mph (210 km/h) is the maximum speed that can be sustained for 10 minutes.  A higher speed becomes dangerous.

This number indicates that your tire has a width of 235 millimeters.

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

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.

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 94 millimeters.

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

This tire has a speed rating of H, which means 130 mph (210 km/h) is the maximum speed that can be sustained for 10 minutes.  A higher speed becomes dangerous.

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

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

The mark of RF indicates that the tire is reinforced.  This means it can handle a higher inflation pressure than a standard tire, which increases its maximum load.

This tire has a load index of 94, which means it's capable of carrying a load of 1474 pounds (670 kg) or less.  A higher number means the tire can carry more weight.  A lower number means the opposite.

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.

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.

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.

This number indicates that your tire has a width of 235 millimeters.

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

The mark of RF indicates that the tire is reinforced.  This means it can handle a higher inflation pressure than a standard tire, which increases its maximum load.

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.

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.

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 94 millimeters.

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

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.

This number indicates that your tire has a width of 245 millimeters.

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

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

This tire has a speed rating of V, which means 149 mph (240 km/h) is the maximum speed that can be sustained for 10 minutes.  A higher speed becomes dangerous.

This number indicates that your tire has a width of 265 millimeters.

The tire size was designed to fit rims or wheels that are 18 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 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 92 millimeters.

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

This tire has a speed rating of V, which means 149 mph (240 km/h) is the maximum speed that can be sustained for 10 minutes.  A higher speed becomes dangerous.

This number indicates that your tire has a width of 245 millimeters.

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

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

This tire has a speed rating of V, which means 149 mph (240 km/h) is the maximum speed that can be sustained for 10 minutes.  A higher speed becomes dangerous.

This number indicates that your tire has a width of 265 millimeters.

The tire size was designed to fit rims or wheels that are 18 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 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 92 millimeters.

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

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.

This number indicates that your tire has a width of 245 millimeters.

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

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

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.