Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 260/70-17 | 285/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.33 (795.8) | 32.71 (830.8) | 1.38 (35) 4.4% |
| Width inches (mm) | 10.24 (260) | 11.22 (285) | 0.98 (25) 9.6% |
| Circum. inches (mm) | 98.43 (2500.08) | 102.76 (2610.04) | 4.33 (109.96) 4.4% |
| Sidewall Height inches (mm) | 7.17 (182) | 7.85 (199.5) | 0.69 (17.5) 9.6% |
| Revolutions per mile (km) | 643.72 (399.99) | 616.6 (383.14) | -27.12 (-16.85) -4.2% |
285/70-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.88 mph (33.6 km/h) |
| 25 mph (40.23 km/h) | 26.1 mph (42 km/h) |
| 30 mph (48.28 km/h) | 31.32 mph (50.4 km/h) |
| 35 mph (56.33 km/h) | 36.54 mph (58.8 km/h) |
| 40 mph (64.37 km/h) | 41.76 mph (67.21 km/h) |
| 45 mph (72.42 km/h) | 46.98 mph (75.61 km/h) |
| 50 mph (80.47 km/h) | 52.2 mph (84.01 km/h) |
| 55 mph (88.51 km/h) | 57.42 mph (92.41 km/h) |
| 60 mph (96.56 km/h) | 62.64 mph (100.81 km/h) |
| 65 mph (104.61 km/h) | 67.86 mph (109.21 km/h) |
| 70 mph (112.65 km/h) | 73.08 mph (117.61 km/h) |
| 75 mph (120.7 km/h) | 78.3 mph (126.01 km/h) |
| 80 mph (128.75 km/h) | 83.52 mph (134.41 km/h) |
| 85 mph (136.79 km/h) | 88.74 mph (142.81 km/h) |
| 90 mph (144.84 km/h) | 93.96 mph (151.21 km/h) |
| 95 mph (152.89 km/h) | 99.18 mph (159.61 km/h) |
| 100 mph (160.93 km/h) | 104.4 mph (168.01 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1569 | 1823 | 1963 | 2050 | 2143 | 2210 | 2284 | 2370 | 2491 | 2611 | 2744 | 2851 | 3045 | 3258 | 3425 | 3532 | 3592 | 3813 | 4120 | 4788 |
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