What does 235/40R17 mean?
|
235 |
The tire width is 235mm. |
|
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. |
|
17 |
Rim diameter for the tire. |
235/40R17 90W tire size
The width of 235/40R17 90W tire is stated in millimeters and sidewall height in percentages. In this table you’ll find out the 235/40R17 90W tire size in inches as well as few additional metrics:
|
|
In inches | In millimeters |
|
Section Width |
9.3″ | 235mm |
|
Sidewall height |
3.7″ | 94mm |
|
Diameter / Height |
24.4″ | 620mm |
|
Circumference |
76.7″ | 1947mm |
|
Rim Diameter |
17″ | |
|
Revolutions |
827 per mile | 514 per kilometer |
Rim Size for 235/40R17 90W Tires
Recommended rim sizes for 235/40R17 90W tire:
| Diameter | Width Range |
| 17″ | 8-9.5″ |
What does 90W mean?
The load index 90 means that the tire has been designed to support 1323 lbs or 600 kg.
The speed index W means that the tire has been designed to be used in speed up to 168 mph or 270 kph.