Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/45-17 | 285/40-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.74 (679.3) | 25.98 (659.8) | -0.77 (-19.5) -2.9% |
| Width inches (mm) | 10.83 (275) | 11.22 (285) | 0.39 (10) 3.6% |
| Circum. inches (mm) | 84.02 (2134.08) | 81.61 (2072.82) | -2.41 (-61.26) -2.9% |
| Sidewall Height inches (mm) | 4.87 (123.75) | 4.49 (114) | -0.38 (-9.75) -7.9% |
| Revolutions per mile (km) | 754.11 (468.58) | 776.4 (482.43) | 22.29 (13.85) 3% |
285/40-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.43 mph (31.26 km/h) |
| 25 mph (40.23 km/h) | 24.28 mph (39.08 km/h) |
| 30 mph (48.28 km/h) | 29.14 mph (46.89 km/h) |
| 35 mph (56.33 km/h) | 34 mph (54.71 km/h) |
| 40 mph (64.37 km/h) | 38.85 mph (62.53 km/h) |
| 45 mph (72.42 km/h) | 43.71 mph (70.34 km/h) |
| 50 mph (80.47 km/h) | 48.56 mph (78.16 km/h) |
| 55 mph (88.51 km/h) | 53.42 mph (85.97 km/h) |
| 60 mph (96.56 km/h) | 58.28 mph (93.79 km/h) |
| 65 mph (104.61 km/h) | 63.13 mph (101.6 km/h) |
| 70 mph (112.65 km/h) | 67.99 mph (109.42 km/h) |
| 75 mph (120.7 km/h) | 72.85 mph (117.24 km/h) |
| 80 mph (128.75 km/h) | 77.7 mph (125.05 km/h) |
| 85 mph (136.79 km/h) | 82.56 mph (132.87 km/h) |
| 90 mph (144.84 km/h) | 87.42 mph (140.68 km/h) |
| 95 mph (152.89 km/h) | 92.27 mph (148.5 km/h) |
| 100 mph (160.93 km/h) | 97.13 mph (156.31 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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