What does 285/35R20 mean?
285 |
The tire width is 285mm. |
35 |
The aspect ratio of the tire is 35. 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. |
20 |
Rim diameter for the tire. |
285/35R20 104W tire size
The width of 285/35R20 104W tire is stated in millimeters and sidewall height in percentages. In this table you’ll find out the 285/35R20 104W tire size in inches as well as few additional metrics:
|
In inches | In millimeters |
Section Width |
11.2″ | 285mm |
Sidewall height |
3.9″ | 100mm |
Diameter / Height |
27.9″ | 708mm |
Circumference |
87.5″ | 2223mm |
Rim Diameter |
20″ | |
Revolutions |
724 per mile | 450 per kilometer |
Rim Size for 285/35R20 104W Tires
Recommended rim sizes for 285/35R20 104W tire:
Diameter | Width Range |
20″ | 9.5-11″ |
What does 104W mean?
The load index 104 means that the tire has been designed to support 1984 lbs or 900 kg.
The speed index W means that the tire has been designed to be used in speed up to 168 mph or 270 kph.
The 285/35 R20 size tires are usually used on high-performance cars.