What does 275/40R22 mean?
|
275 |
The tire width is 275mm. |
|
40 |
The aspect ratio of the tire is 40. Aspect ratio is the relative height of tire sidewall. The number refers to the percentage of sidewall height in relation to tire width. |
|
R |
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. |
|
22 |
Rim diameter for the tire. |
275/40R22 108Y tire size
The width of 275/40R22 108Y tire is stated in millimeters and sidewall height in percentages. In this table you’ll find out the 275/40R22 108Y tire size in inches as well as few additional metrics:
|
|
In inches | In millimeters |
|
Section Width |
10.8″ | 275mm |
|
Sidewall height |
4.3″ | 110mm |
|
Diameter / Height |
30.7″ | 779mm |
|
Circumference |
96.3″ | 2447mm |
|
Rim Diameter |
22″ | |
|
Revolutions |
658 per mile | 409 per kilometer |
Rim Size for 275/40R22 108Y Tires
Recommended rim sizes for 275/40R22 108Y tire:
| Diameter | Width Range |
| 22″ | 9-10.5″ |
What does 108Y mean?
The load index 108 means that the tire has been designed to support 2205 lbs or 1000 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 performance vehicle, such as a sports car. The 275 indicates the width of the tire in millimeters, while the 40 indicates the sidewall height as a percentage of the width. The R indicates that the tire is a radial tire, and the 22 indicates the diameter of the wheel in inches.