2021 Lexus IS300 Tire Size
There are multiple tire sizes for your 2021 Lexus IS300 that depend upon the trim level. Look for your trim level below to get a color-coded explanation of your tire size. Then pick the best tire size for your 2021 Lexus IS300.
Trim Options:
(AWD)(RWD)
235/45R18 94
Simplified Size: 235-45-18
Simplified size is useful for shopping and buying tires.
The original tire size for your 2021 Lexus IS300 is 235/45R18 94V. A color-coded explanation of the 2021 Lexus IS300's tire size is shown below.
235 | This number indicates that your tire has a width of 235 millimeters. | ||||||
18 | The tire size was designed to fit rims or wheels that are 18 inches in diameter. | ||||||
94 | 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. | ||||||
45 | 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 105 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 V, which means 149 mph (240 km/h) is the maximum speed that can be sustained for 10 minutes. A higher speed becomes dangerous. |
Trim Options:
(RWD)
235/45R18 94
Simplified Size: 235-45-18
Simplified size is useful for shopping and buying tires.
The original tire size for your 2021 Lexus IS300 is 235/45R18 94Y. A color-coded explanation of the 2021 Lexus IS300's tire size is shown below.
235 | This number indicates that your tire has a width of 235 millimeters. | ||||||
18 | The tire size was designed to fit rims or wheels that are 18 inches in diameter. | ||||||
94 | 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. | ||||||
45 | 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 105 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. |