What does 245/30R20 mean?
|The tire width is 245mm.|
|The aspect ratio of the tire is 30. Aspect ratio is the relative height of tire sidewall. The number refers to the percentage of sidewall height in relation to tire width.|
|The letter in the middle refers to tire construction. Practically all tires sold for cars are radials.|
Sometimes you also see tires with RF or ZR. RF indicates the tire is run flat, whereas ZR means the tire has speed rating higher than V. These tires are also radials, as the R indicates.
|Rim diameter for the tire.|
245/30R20 90Y tire size
The width of 245/30R20 90Y tire is stated in millimeters and sidewall height in percentages. In this table you’ll find out the 245/30R20 90Y tire size in inches as well as few additional metrics:
|In inches||In millimeters|
Diameter / Height
|782 per mile||486 per kilometer|
Rim Size for 245/30R20 90Y Tires
Recommended rim sizes for 245/30R20 90Y tire:
What does 90Y mean?
The load index 90 means that the tire has been designed to support 1323 lbs or 600 kg.
The speed index Y means that the tire has been designed to be used in speed up to 186 mph or 300 kph.This size tire is usually used on a high performance car.