Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/75-17 | 285/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 35.6 (904.3) | 32.71 (830.8) | -2.89 (-73.5) -8.1% |
| Width inches (mm) | 12.4 (315) | 11.22 (285) | -1.18 (-30) -9.5% |
| Circum. inches (mm) | 111.85 (2840.94) | 102.76 (2610.04) | -9.09 (-230.91) -8.1% |
| Sidewall Height inches (mm) | 9.3 (236.25) | 7.85 (199.5) | -1.45 (-36.75) -15.6% |
| Revolutions per mile (km) | 566.48 (352) | 616.6 (383.14) | 50.12 (31.14) 8.8% |
285/70-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.37 mph (29.57 km/h) |
| 25 mph (40.23 km/h) | 22.97 mph (36.96 km/h) |
| 30 mph (48.28 km/h) | 27.56 mph (44.36 km/h) |
| 35 mph (56.33 km/h) | 32.16 mph (51.75 km/h) |
| 40 mph (64.37 km/h) | 36.75 mph (59.14 km/h) |
| 45 mph (72.42 km/h) | 41.34 mph (66.53 km/h) |
| 50 mph (80.47 km/h) | 45.94 mph (73.93 km/h) |
| 55 mph (88.51 km/h) | 50.53 mph (81.32 km/h) |
| 60 mph (96.56 km/h) | 55.12 mph (88.71 km/h) |
| 65 mph (104.61 km/h) | 59.72 mph (96.11 km/h) |
| 70 mph (112.65 km/h) | 64.31 mph (103.5 km/h) |
| 75 mph (120.7 km/h) | 68.9 mph (110.89 km/h) |
| 80 mph (128.75 km/h) | 73.5 mph (118.28 km/h) |
| 85 mph (136.79 km/h) | 78.09 mph (125.68 km/h) |
| 90 mph (144.84 km/h) | 82.68 mph (133.07 km/h) |
| 95 mph (152.89 km/h) | 87.28 mph (140.46 km/h) |
| 100 mph (160.93 km/h) | 91.87 mph (147.85 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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