177Best 175/70 R12 tires
1 rated tire available in this size, scored on dry, wet, snow, comfort and wear. Top overall right now is the Petlas Elegant PT311 at 77/100.
21.6″
overall diameter
6.9″
section width
12″
rim diameter
931.7
revs per mile
Best 175/70 R12 summer tires
1177Conversion
175/70 R12 in inches
| Overall diameter | 21.6″ |
| Section width | 6.9″ |
| Rim diameter | 12″ |
| Sidewall height | 123 mm |
| Circumference | 68″ |
| Revolutions per mile | 931.7 |
Wheels
What rims fit 175/70 R12 tires?
A tire fits a range of rim widths. Too narrow or too wide and the sidewall changes shape.
Minimum
5″
Ideal
5.5″
Maximum
6″
Rim diameter is fixed at 12″ — only the width varies. Estimated from the 6.9″ section width (70–90% rule).
Sidewall
175/70 R12 — what does it mean?
| Parameter | Meaning |
|---|---|
| 175 | The first number is the section width — 175 mm, or about 6.9 inches across the widest part of the tire. |
| 70 | The second number is the aspect ratio: sidewall height as a percentage of width. At 70%, the sidewall is about 123 mm tall. |
| R12 | R means radial construction, which nearly all modern tires use. The number is the rim diameter in inches — this tire fits a 12-inch wheel. |