Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/35-17 | 285/40-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.68 (652.3) | 25.98 (659.8) | 0.3 (7.5) 1.1% |
| Width inches (mm) | 12.4 (315) | 11.22 (285) | -1.18 (-30) -9.5% |
| Circum. inches (mm) | 80.68 (2049.26) | 81.61 (2072.82) | 0.93 (23.56) 1.1% |
| Sidewall Height inches (mm) | 4.34 (110.25) | 4.49 (114) | 0.15 (3.75) 3.4% |
| Revolutions per mile (km) | 785.33 (487.98) | 776.4 (482.43) | -8.93 (-5.55) -1.1% |
285/40-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.23 mph (32.56 km/h) |
| 25 mph (40.23 km/h) | 25.29 mph (40.7 km/h) |
| 30 mph (48.28 km/h) | 30.34 mph (48.84 km/h) |
| 35 mph (56.33 km/h) | 35.4 mph (56.97 km/h) |
| 40 mph (64.37 km/h) | 40.46 mph (65.11 km/h) |
| 45 mph (72.42 km/h) | 45.52 mph (73.25 km/h) |
| 50 mph (80.47 km/h) | 50.57 mph (81.39 km/h) |
| 55 mph (88.51 km/h) | 55.63 mph (89.53 km/h) |
| 60 mph (96.56 km/h) | 60.69 mph (97.67 km/h) |
| 65 mph (104.61 km/h) | 65.75 mph (105.81 km/h) |
| 70 mph (112.65 km/h) | 70.8 mph (113.95 km/h) |
| 75 mph (120.7 km/h) | 75.86 mph (122.09 km/h) |
| 80 mph (128.75 km/h) | 80.92 mph (130.23 km/h) |
| 85 mph (136.79 km/h) | 85.98 mph (138.37 km/h) |
| 90 mph (144.84 km/h) | 91.03 mph (146.51 km/h) |
| 95 mph (152.89 km/h) | 96.09 mph (154.65 km/h) |
| 100 mph (160.93 km/h) | 101.15 mph (162.79 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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