Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/50-17 | 285/40-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.83 (706.8) | 25.98 (659.8) | -1.85 (-47) -6.6% |
| Width inches (mm) | 10.83 (275) | 11.22 (285) | 0.39 (10) 3.6% |
| Circum. inches (mm) | 87.42 (2220.48) | 81.61 (2072.82) | -5.81 (-147.65) -6.6% |
| Sidewall Height inches (mm) | 5.41 (137.5) | 4.49 (114) | -0.93 (-23.5) -17.1% |
| Revolutions per mile (km) | 724.77 (450.35) | 776.4 (482.43) | 51.63 (32.08) 7.1% |
285/40-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.67 mph (30.05 km/h) |
| 25 mph (40.23 km/h) | 23.34 mph (37.56 km/h) |
| 30 mph (48.28 km/h) | 28.01 mph (45.07 km/h) |
| 35 mph (56.33 km/h) | 32.67 mph (52.58 km/h) |
| 40 mph (64.37 km/h) | 37.34 mph (60.09 km/h) |
| 45 mph (72.42 km/h) | 42.01 mph (67.6 km/h) |
| 50 mph (80.47 km/h) | 46.68 mph (75.12 km/h) |
| 55 mph (88.51 km/h) | 51.34 mph (82.63 km/h) |
| 60 mph (96.56 km/h) | 56.01 mph (90.14 km/h) |
| 65 mph (104.61 km/h) | 60.68 mph (97.65 km/h) |
| 70 mph (112.65 km/h) | 65.35 mph (105.16 km/h) |
| 75 mph (120.7 km/h) | 70.01 mph (112.67 km/h) |
| 80 mph (128.75 km/h) | 74.68 mph (120.19 km/h) |
| 85 mph (136.79 km/h) | 79.35 mph (127.7 km/h) |
| 90 mph (144.84 km/h) | 84.02 mph (135.21 km/h) |
| 95 mph (152.89 km/h) | 88.68 mph (142.72 km/h) |
| 100 mph (160.93 km/h) | 93.35 mph (150.23 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1976 | 2295 | 2472 | 2581 | 2699 | 2783 | 2875 | 2985 | 3136 | 3287 | 3456 | 3590 | 3834 | 4103 | 4313 | 4448 | 4523 | 4801 | 5188 | 6028 |
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