Best 155/45 R17 tires
We don't have rated tires listed in this size yet — the conversion, rim fitment and comparisons below still apply.
22.5″
overall diameter
6.1″
section width
17″
rim diameter
896.7
revs per mile
Conversion
155/45 R17 in inches
| Overall diameter | 22.5″ |
| Section width | 6.1″ |
| Rim diameter | 17″ |
| Sidewall height | 70 mm |
| Circumference | 70.7″ |
| Revolutions per mile | 896.7 |
The closest flotation size is 31x10.50R17 — 37.8% taller and 72.1% wider. Compare them in the calculator.
Wheels
What rims fit 155/45 R17 tires?
A tire fits a range of rim widths. Too narrow or too wide and the sidewall changes shape.
Minimum
4.5″
Ideal
5″
Maximum
5.5″
Rim diameter is fixed at 17″ — only the width varies. Estimated from the 6.1″ section width (70–90% rule).
Fitted from the factory on rims: 17x5.
Sidewall
155/45 R17 — what does it mean?
| Parameter | Meaning |
|---|---|
| 155 | The first number is the section width — 155 mm, or about 6.1 inches across the widest part of the tire. |
| 45 | The second number is the aspect ratio: sidewall height as a percentage of width. At 45%, the sidewall is about 70 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. |