Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 280/85-16 | 285/85-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 34.74 (882.4) | 35.07 (890.9) | 0.33 (8.5) 1% |
| Width inches (mm) | 11.02 (280) | 11.22 (285) | 0.2 (5) 1.8% |
| Circum. inches (mm) | 109.14 (2772.14) | 110.19 (2798.84) | 1.05 (26.7) 1% |
| Sidewall Height inches (mm) | 9.37 (238) | 9.54 (242.25) | 0.17 (4.25) 1.8% |
| Revolutions per mile (km) | 580.54 (360.73) | 575 (357.29) | -5.54 (-3.44) -1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.19 mph (32.5 km/h) |
| 25 mph (40.23 km/h) | 25.24 mph (40.62 km/h) |
| 30 mph (48.28 km/h) | 30.29 mph (48.75 km/h) |
| 35 mph (56.33 km/h) | 35.34 mph (56.87 km/h) |
| 40 mph (64.37 km/h) | 40.39 mph (64.99 km/h) |
| 45 mph (72.42 km/h) | 45.43 mph (73.12 km/h) |
| 50 mph (80.47 km/h) | 50.48 mph (81.24 km/h) |
| 55 mph (88.51 km/h) | 55.53 mph (89.37 km/h) |
| 60 mph (96.56 km/h) | 60.58 mph (97.49 km/h) |
| 65 mph (104.61 km/h) | 65.63 mph (105.62 km/h) |
| 70 mph (112.65 km/h) | 70.67 mph (113.74 km/h) |
| 75 mph (120.7 km/h) | 75.72 mph (121.86 km/h) |
| 80 mph (128.75 km/h) | 80.77 mph (129.99 km/h) |
| 85 mph (136.79 km/h) | 85.82 mph (138.11 km/h) |
| 90 mph (144.84 km/h) | 90.87 mph (146.24 km/h) |
| 95 mph (152.89 km/h) | 95.92 mph (154.36 km/h) |
| 100 mph (160.93 km/h) | 100.96 mph (162.48 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1463 | 1700 | 1831 | 1912 | 1999 | 2061 | 2130 | 2210 | 2323 | 2435 | 2559 | 2659 | 2839 | 3039 | 3194 | 3294 | 3350 | 3555 | 3842 | 4465 |
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