Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/60-20 | 285/60-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.8 (706) | 33.46 (850) | 5.67 (144) 20.4% |
| Width inches (mm) | 6.5 (165) | 11.22 (285) | 4.72 (120) 72.7% |
| Circum. inches (mm) | 87.32 (2217.96) | 105.13 (2670.35) | 17.81 (452.39) 20.4% |
| Sidewall Height inches (mm) | 3.9 (99) | 6.73 (171) | 2.83 (72) 72.7% |
| Revolutions per mile (km) | 725.6 (450.86) | 602.67 (374.48) | -122.92 (-76.38) -16.9% |
285/60-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 24.08 mph (38.75 km/h) |
| 25 mph (40.23 km/h) | 30.1 mph (48.44 km/h) |
| 30 mph (48.28 km/h) | 36.12 mph (58.13 km/h) |
| 35 mph (56.33 km/h) | 42.14 mph (67.82 km/h) |
| 40 mph (64.37 km/h) | 48.16 mph (77.5 km/h) |
| 45 mph (72.42 km/h) | 54.18 mph (87.19 km/h) |
| 50 mph (80.47 km/h) | 60.2 mph (96.88 km/h) |
| 55 mph (88.51 km/h) | 66.22 mph (106.57 km/h) |
| 60 mph (96.56 km/h) | 72.24 mph (116.26 km/h) |
| 65 mph (104.61 km/h) | 78.26 mph (125.94 km/h) |
| 70 mph (112.65 km/h) | 84.28 mph (135.63 km/h) |
| 75 mph (120.7 km/h) | 90.3 mph (145.32 km/h) |
| 80 mph (128.75 km/h) | 96.32 mph (155.01 km/h) |
| 85 mph (136.79 km/h) | 102.34 mph (164.7 km/h) |
| 90 mph (144.84 km/h) | 108.36 mph (174.38 km/h) |
| 95 mph (152.89 km/h) | 114.38 mph (184.07 km/h) |
| 100 mph (160.93 km/h) | 120.4 mph (193.76 km/h) |
| 2.35 | 2.73 | 2.94 | 3.07 | 3.21 | 3.31 | 3.42 | 3.55 | 3.73 | 3.91 | 4.11 | 4.27 | 4.56 | 4.88 | 5.13 | 5.29 | 5.38 | 5.71 | 6.17 | 7.17 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1534 | 1782 | 1919 | 2004 | 2095 | 2160 | 2232 | 2317 | 2434 | 2552 | 2682 | 2787 | 2976 | 3185 | 3348 | 3452 | 3511 | 3727 | 4027 | 4679 |
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