188Best 255/85 R17 tires
1 rated tire available in this size, scored on dry, wet, snow, comfort and wear. Top overall right now is the Mickey Thompson Baja Boss A/T at 88/100.
34.1″
overall diameter
10″
section width
17″
rim diameter
592
revs per mile
Best 255/85 R17 all-terrain tires
1188Conversion
255/85 R17 in inches
| Overall diameter | 34.1″ |
| Section width | 10″ |
| Rim diameter | 17″ |
| Sidewall height | 217 mm |
| Circumference | 107″ |
| Revolutions per mile | 592 |
The closest flotation size is 34x10.50R17 — 0.2% shorter and 4.6% wider. Compare them in the calculator.
Wheels
What rims fit 255/85 R17 tires?
A tire fits a range of rim widths. Too narrow or too wide and the sidewall changes shape.
Minimum
7″
Ideal
8″
Maximum
9″
Rim diameter is fixed at 17″ — only the width varies. Estimated from the 10″ section width (70–90% rule).
Popular comparisons
Sizes often compared with 255/85 R17
Close alternatives — each opens in the tire size calculator.
Sidewall
255/85 R17 — what does it mean?
| Parameter | Meaning |
|---|---|
| 255 | The first number is the section width — 255 mm, or about 10 inches across the widest part of the tire. |
| 85 | The second number is the aspect ratio: sidewall height as a percentage of width. At 85%, the sidewall is about 217 mm tall. |
| R17 | R means radial construction, which nearly all modern tires use. The number is the rim diameter in inches — this tire fits a 17-inch wheel. |