Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 280/85-16 | 275/85-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 34.74 (882.4) | 35.41 (899.3) | 0.67 (16.9) 1.9% |
| Width inches (mm) | 11.02 (280) | 10.83 (275) | -0.2 (-5) -1.8% |
| Circum. inches (mm) | 109.14 (2772.14) | 111.23 (2825.23) | 2.09 (53.09) 1.9% |
| Sidewall Height inches (mm) | 9.37 (238) | 9.2 (233.75) | -0.17 (-4.25) -1.8% |
| Revolutions per mile (km) | 580.54 (360.73) | 569.63 (353.95) | -10.91 (-6.78) -1.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.38 mph (32.8 km/h) |
| 25 mph (40.23 km/h) | 25.48 mph (41 km/h) |
| 30 mph (48.28 km/h) | 30.57 mph (49.21 km/h) |
| 35 mph (56.33 km/h) | 35.67 mph (57.41 km/h) |
| 40 mph (64.37 km/h) | 40.77 mph (65.61 km/h) |
| 45 mph (72.42 km/h) | 45.86 mph (73.81 km/h) |
| 50 mph (80.47 km/h) | 50.96 mph (82.01 km/h) |
| 55 mph (88.51 km/h) | 56.05 mph (90.21 km/h) |
| 60 mph (96.56 km/h) | 61.15 mph (98.41 km/h) |
| 65 mph (104.61 km/h) | 66.24 mph (106.61 km/h) |
| 70 mph (112.65 km/h) | 71.34 mph (114.81 km/h) |
| 75 mph (120.7 km/h) | 76.44 mph (123.01 km/h) |
| 80 mph (128.75 km/h) | 81.53 mph (131.21 km/h) |
| 85 mph (136.79 km/h) | 86.63 mph (139.41 km/h) |
| 90 mph (144.84 km/h) | 91.72 mph (147.62 km/h) |
| 95 mph (152.89 km/h) | 96.82 mph (155.82 km/h) |
| 100 mph (160.93 km/h) | 101.92 mph (164.02 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1450 | 1684 | 1814 | 1894 | 1980 | 2042 | 2110 | 2190 | 2301 | 2412 | 2535 | 2634 | 2813 | 3010 | 3164 | 3263 | 3319 | 3522 | 3806 | 4423 |
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