Best 130/90 R20 tires
We don't have rated tires listed in this size yet — the conversion, rim fitment and comparisons below still apply.
29.2″
overall diameter
5.1″
section width
20″
rim diameter
690.4
revs per mile
Conversion
130/90 R20 in inches
| Overall diameter | 29.2″ |
| Section width | 5.1″ |
| Rim diameter | 20″ |
| Sidewall height | 117 mm |
| Circumference | 91.8″ |
| Revolutions per mile | 690.4 |
The closest flotation size is 33x11.50R20 — 13% taller and 124.7% wider. Compare them in the calculator.
Wheels
What rims fit 130/90 R20 tires?
A tire fits a range of rim widths. Too narrow or too wide and the sidewall changes shape.
Minimum
3.5″
Ideal
4″
Maximum
4.5″
Rim diameter is fixed at 20″ — only the width varies. Estimated from the 5.1″ section width (70–90% rule).
Fitted from the factory on rims: 20x3.5.
Sidewall
130/90 R20 — what does it mean?
| Parameter | Meaning |
|---|---|
| 130 | The first number is the section width — 130 mm, or about 5.1 inches across the widest part of the tire. |
| 90 | The second number is the aspect ratio: sidewall height as a percentage of width. At 90%, the sidewall is about 117 mm tall. |
| R20 | R means radial construction, which nearly all modern tires use. The number is the rim diameter in inches — this tire fits a 20-inch wheel. |