Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 80/70-17 | 285/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.41 (543.8) | 32.71 (830.8) | 11.3 (287) 52.8% |
| Width inches (mm) | 3.15 (80) | 11.22 (285) | 8.07 (205) 256.3% |
| Circum. inches (mm) | 67.26 (1708.4) | 102.76 (2610.04) | 35.5 (901.64) 52.8% |
| Sidewall Height inches (mm) | 2.2 (56) | 7.85 (199.5) | 5.65 (143.5) 256.3% |
| Revolutions per mile (km) | 942.02 (585.34) | 616.6 (383.14) | -325.42 (-202.21) -34.5% |
285/70-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 30.56 mph (49.17 km/h) |
| 25 mph (40.23 km/h) | 38.19 mph (61.47 km/h) |
| 30 mph (48.28 km/h) | 45.83 mph (73.76 km/h) |
| 35 mph (56.33 km/h) | 53.47 mph (86.05 km/h) |
| 40 mph (64.37 km/h) | 61.11 mph (98.35 km/h) |
| 45 mph (72.42 km/h) | 68.75 mph (110.64 km/h) |
| 50 mph (80.47 km/h) | 76.39 mph (122.94 km/h) |
| 55 mph (88.51 km/h) | 84.03 mph (135.23 km/h) |
| 60 mph (96.56 km/h) | 91.67 mph (147.52 km/h) |
| 65 mph (104.61 km/h) | 99.3 mph (159.82 km/h) |
| 70 mph (112.65 km/h) | 106.94 mph (172.11 km/h) |
| 75 mph (120.7 km/h) | 114.58 mph (184.4 km/h) |
| 80 mph (128.75 km/h) | 122.22 mph (196.7 km/h) |
| 85 mph (136.79 km/h) | 129.86 mph (208.99 km/h) |
| 90 mph (144.84 km/h) | 137.5 mph (221.28 km/h) |
| 95 mph (152.89 km/h) | 145.14 mph (233.58 km/h) |
| 100 mph (160.93 km/h) | 152.78 mph (245.87 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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