2021 Mercedes-Benz GLA45 AMG Tire Size
Your Mercedes-Benz was manufactured with different tire sizes. To determine the best tire size for your specific 2021 Mercedes-Benz GLA45 AMG, we first need to determine your rim size. Please review the information below.
How to Determine Rim Size
Check your existing tires. Your Mercedes-Benz GLA45 AMG's rim size is the number to the right of the R. In the example pictured here, the tire size fits 16-inch rims.
Rim Size Selection
Now that you know your rim size, make a selection below to filter your results.
20-Inch Rims
2021 Mercedes-Benz GLA45 AMG
The original tire size for your 2021 Mercedes-Benz GLA45 AMG is listed below. Tap on the box to view a color-coded explanation of your Mercedes-Benz GLA45 AMG's' tire size.
Trim Options:
4Matic
255/40ZR20/XL 101
Simplified Size: 255-40-20
Simplified size is useful for shopping and buying tires.
The original tire size for your 2021 Mercedes-Benz GLA45 AMG is 255/40ZR20/XL 101Y. A color-coded explanation of the 2021 Mercedes-Benz GLA45 AMG's tire size is shown below.
255 | This number indicates that your tire has a width of 255 millimeters. | ||||||
20 | The tire size was designed to fit rims or wheels that are 20 inches in diameter. | ||||||
XL | 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. | ||||||
101 | This tire has a load index of 101, which means it's capable of carrying a load of 1815 pounds (825 kg) or less. A higher number means the tire can carry more weight. A lower number means the opposite. | ||||||
Z | 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. | ||||||
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.
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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. |
21-Inch Rims
2021 Mercedes-Benz GLA45 AMG
The original tire size for your 2021 Mercedes-Benz GLA45 AMG is listed below. Tap on the box to view a color-coded explanation of your Mercedes-Benz GLA45 AMG's' tire size.
Trim Options:
4Matic
255/35ZR21/XL 98
Simplified Size: 255-35-21
Simplified size is useful for shopping and buying tires.
The original tire size for your 2021 Mercedes-Benz GLA45 AMG is 255/35ZR21/XL 98Y. A color-coded explanation of the 2021 Mercedes-Benz GLA45 AMG's tire size is shown below.
255 | This number indicates that your tire has a width of 255 millimeters. | ||||||
21 | The tire size was designed to fit rims or wheels that are 21 inches in diameter. | ||||||
XL | 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. | ||||||
98 | This tire has a load index of 98, which means it's capable of carrying a load of 1650 pounds (750 kg) or less. A higher number means the tire can carry more weight. A lower number means the opposite. | ||||||
Z | 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. | ||||||
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 89 millimeters. | ||||||
R | 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. |