2019 Chevrolet Corvette Tire Size

This letter denotes the intended use of the tire.

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

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

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 30%.  In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 30% of the width.  In this case, the sidewall height works out to be 85 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 letter denotes the intended use of the tire.

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

The tire size was designed to fit rims or wheels that are 19 inches in diameter.

This tire has a load index of 89, which means it's capable of carrying a load of 1276 pounds (580 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 85 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 letter denotes the intended use of the tire.

This number indicates that your tire has a width of 335 millimeters.

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

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 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 25%.  In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 25% of the width.  In this case, the sidewall height works out to be 83 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 letter denotes the intended use of the tire.

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

The tire size was designed to fit rims or wheels that are 19 inches in diameter.

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 30%.  In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 30% of the width.  In this case, the sidewall height works out to be 85 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.