Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/35-17 | 255/40-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.75 (603.3) | 25.03 (635.8) | 1.28 (32.5) 5.4% |
| Width inches (mm) | 9.65 (245) | 10.04 (255) | 0.39 (10) 4.1% |
| Circum. inches (mm) | 74.62 (1895.32) | 78.64 (1997.42) | 4.02 (102.1) 5.4% |
| Sidewall Height inches (mm) | 3.38 (85.75) | 4.02 (102) | 0.64 (16.25) 19% |
| Revolutions per mile (km) | 849.11 (527.61) | 805.71 (500.64) | -43.4 (-26.97) -5.1% |
255/40-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.08 mph (33.92 km/h) |
| 25 mph (40.23 km/h) | 26.35 mph (42.4 km/h) |
| 30 mph (48.28 km/h) | 31.62 mph (50.88 km/h) |
| 35 mph (56.33 km/h) | 36.89 mph (59.36 km/h) |
| 40 mph (64.37 km/h) | 42.15 mph (67.84 km/h) |
| 45 mph (72.42 km/h) | 47.42 mph (76.32 km/h) |
| 50 mph (80.47 km/h) | 52.69 mph (84.8 km/h) |
| 55 mph (88.51 km/h) | 57.96 mph (93.28 km/h) |
| 60 mph (96.56 km/h) | 63.23 mph (101.76 km/h) |
| 65 mph (104.61 km/h) | 68.5 mph (110.24 km/h) |
| 70 mph (112.65 km/h) | 73.77 mph (118.72 km/h) |
| 75 mph (120.7 km/h) | 79.04 mph (127.2 km/h) |
| 80 mph (128.75 km/h) | 84.31 mph (135.68 km/h) |
| 85 mph (136.79 km/h) | 89.58 mph (144.16 km/h) |
| 90 mph (144.84 km/h) | 94.85 mph (152.64 km/h) |
| 95 mph (152.89 km/h) | 100.12 mph (161.12 km/h) |
| 100 mph (160.93 km/h) | 105.39 mph (169.6 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2050 | 2382 | 2565 | 2679 | 2801 | 2888 | 2984 | 3097 | 3254 | 3411 | 3586 | 3726 | 3979 | 4258 | 4476 | 4616 | 4694 | 4982 | 5383 | 6256 |
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