2025 Porsche Cayenne tire size
Most common factory size
P255/55R20
- Factory sizes
- 3
- Across 13 trims
- Trims with it
- 8 of 13
- Trims with no size
- 4
- Diameter
- 31.04 in
- Revs per mile
- 650
Tire sizes by trim
Source marks: one source
| Size | Trims | Width, mm | Sidewall, % of width | Rim, in | Diameter, in | Sidewall, in | Revs per mile |
|---|---|---|---|---|---|---|---|
| P255/55R20 | AWD, Coupe AWD, E-Hybrid AWD, Coupe E-Hybrid AWD, S AWD, S E-Hybrid AWD +2 more | 255 | 55 | 20 | 31.04 | 5.52 | 650 |
| P285/45R21 | GTS AWD, Coupe GTS AWD, Turbo E-Hybrid AWD, Coupe Turbo E-Hybrid AWD | 285 | 45 | 21 | 31.10 | 5.05 | 649 |
| P285/40R22 | Coupe Turbo GT AWD | 285 | 40 | 22 | 30.98 | 4.49 | 651 |
What P255/55R20 means
| Part | Number | Meaning |
|---|---|---|
| Type | P | Passenger car tire. |
| Width | 255 mm | Tread width. 10.0 in. |
| Sidewall | 55 | Sidewall height is 55% of the width. |
| Construction | R | Radial tire. |
| Rim | 20 in | Fits 20 in wheels. |
Other sizes that fit
Within 3% of the stock diameter. A common shop guideline, not a maker spec.
| Size | Rim, in | Diameter, in | Change | Speedo reads at 60 mph |
|---|---|---|---|---|
| 255/60R19 | 19 | 31.05 | +0.0% | 60.0 mph |
| 255/50R21 | 21 | 31.04 | -0.0% | 60.0 mph |
| 235/65R19 | 19 | 31.03 | -0.1% | 60.0 mph |
| 285/45R21 | 21 | 31.10 | +0.2% | 59.9 mph |
| 235/60R20 | 20 | 31.10 | +0.2% | 59.9 mph |
| 275/55R19 | 19 | 30.91 | -0.4% | 60.3 mph |
| 285/50R20 | 20 | 31.22 | +0.6% | 59.7 mph |
| 275/50R20 | 20 | 30.83 | -0.7% | 60.4 mph |
| Size | Rim, in | Diameter, in | Change | Speedo reads at 60 mph |
|---|---|---|---|---|
| 235/60R20 | 20 | 31.10 | +0.0% | 60.0 mph |
| 255/55R20 | 20 | 31.04 | -0.2% | 60.1 mph |
| 255/50R21 | 21 | 31.04 | -0.2% | 60.1 mph |
| 255/45R22 | 22 | 31.04 | -0.2% | 60.1 mph |
| 285/40R22 | 22 | 30.98 | -0.4% | 60.2 mph |
| 285/50R20 | 20 | 31.22 | +0.4% | 59.8 mph |
| 295/40R22 | 22 | 31.29 | +0.6% | 59.6 mph |
| 275/50R20 | 20 | 30.83 | -0.9% | 60.5 mph |
| Size | Rim, in | Diameter, in | Change | Speedo reads at 60 mph |
|---|---|---|---|---|
| 255/40R23 | 23 | 31.03 | +0.2% | 59.9 mph |
| 255/45R22 | 22 | 31.04 | +0.2% | 59.9 mph |
| 255/50R21 | 21 | 31.04 | +0.2% | 59.9 mph |
| 285/35R23 | 23 | 30.85 | -0.4% | 60.2 mph |
| 285/45R21 | 21 | 31.10 | +0.4% | 59.8 mph |
| 275/45R21 | 21 | 30.74 | -0.7% | 60.5 mph |
| 245/45R22 | 22 | 30.68 | -1.0% | 60.6 mph |
| 275/40R22 | 22 | 30.66 | -1.0% | 60.6 mph |
Checked against 292 factory sizes listed for 2009-2027 US models.
What this cannot tell you
Tire pressure is on the driver door sticker. Not in this data.
Optional wheel packages may differ.
- Two or more sources agree
- One source
- Model-level or estimate
- Sources differ