192Best 285/35 R21 tires
19 rated tires available in this size, scored on dry, wet, snow, comfort and wear. Top overall right now is the Michelin Pilot Super Sport at 92/100.
28.9″
overall diameter
11.2″
section width
21″
rim diameter
699
revs per mile
Best 285/35 R21 summer tires
12192
283
380
479
577
677
975
1074
1170
1270More top-rated 285/35 R21 tires
4
190
286
379
477Best 285/35 R21 winter tires
3
177
276
Conversion
285/35 R21 in inches
| Overall diameter | 28.9″ |
| Section width | 11.2″ |
| Rim diameter | 21″ |
| Sidewall height | 100 mm |
| Circumference | 90.6″ |
| Revolutions per mile | 699 |
Wheels
What rims fit 285/35 R21 tires?
A tire fits a range of rim widths. Too narrow or too wide and the sidewall changes shape.
Minimum
8″
Ideal
9″
Maximum
10″
Rim diameter is fixed at 21″ — only the width varies. Estimated from the 11.2″ section width (70–90% rule).
Fitted from the factory on rims: 21x9.5, 21x10, 21x10.5, 21x11.5.
Popular comparisons
Sizes often compared with 285/35 R21
Close alternatives — each opens in the tire size calculator.
Sidewall
285/35 R21 — what does it mean?
| Parameter | Meaning |
|---|---|
| 285 | The first number is the section width — 285 mm, or about 11.2 inches across the widest part of the tire. |
| 35 | The second number is the aspect ratio: sidewall height as a percentage of width. At 35%, the sidewall is about 100 mm tall. |
| R21 | R means radial construction, which nearly all modern tires use. The number is the rim diameter in inches — this tire fits a 21-inch wheel. |