Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/75-17 | 285/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 35.01 (889.3) | 32.71 (830.8) | -2.3 (-58.5) -6.6% |
| Width inches (mm) | 12.01 (305) | 11.22 (285) | -0.79 (-20) -6.6% |
| Circum. inches (mm) | 109.99 (2793.82) | 102.76 (2610.04) | -7.24 (-183.78) -6.6% |
| Sidewall Height inches (mm) | 9.01 (228.75) | 7.85 (199.5) | -1.15 (-29.25) -12.8% |
| Revolutions per mile (km) | 576.04 (357.93) | 616.6 (383.14) | 40.56 (25.2) 7% |
285/70-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.68 mph (30.07 km/h) |
| 25 mph (40.23 km/h) | 23.36 mph (37.59 km/h) |
| 30 mph (48.28 km/h) | 28.03 mph (45.1 km/h) |
| 35 mph (56.33 km/h) | 32.7 mph (52.62 km/h) |
| 40 mph (64.37 km/h) | 37.37 mph (60.14 km/h) |
| 45 mph (72.42 km/h) | 42.04 mph (67.66 km/h) |
| 50 mph (80.47 km/h) | 46.71 mph (75.17 km/h) |
| 55 mph (88.51 km/h) | 51.38 mph (82.69 km/h) |
| 60 mph (96.56 km/h) | 56.05 mph (90.21 km/h) |
| 65 mph (104.61 km/h) | 60.72 mph (97.73 km/h) |
| 70 mph (112.65 km/h) | 65.4 mph (105.24 km/h) |
| 75 mph (120.7 km/h) | 70.07 mph (112.76 km/h) |
| 80 mph (128.75 km/h) | 74.74 mph (120.28 km/h) |
| 85 mph (136.79 km/h) | 79.41 mph (127.8 km/h) |
| 90 mph (144.84 km/h) | 84.08 mph (135.31 km/h) |
| 95 mph (152.89 km/h) | 88.75 mph (142.83 km/h) |
| 100 mph (160.93 km/h) | 93.42 mph (150.35 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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