1999 Land Rover Discovery Tire Size
The original tire size for your 1999 Land Rover Discovery is listed below. Tap on the box to view a color-coded explanation of the best Land Rover Discovery tire size.
The original tire size for your 1999 Land Rover Discovery is 255/55R18/XL 109H. A color-coded explanation of the 1999 Land Rover Discovery's tire size is shown below.
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 109, which means it's capable of carrying a load of 2266 pounds (1030 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 55%. In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 55% of the width. In this case, the sidewall height works out to be 140 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.