Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/85-17 | 245/75-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.73 (831.3) | 31.47 (799.3) | -1.26 (-32) -3.8% |
| Width inches (mm) | 9.25 (235) | 9.65 (245) | 0.39 (10) 4.3% |
| Circum. inches (mm) | 102.82 (2611.61) | 98.86 (2511.08) | -3.96 (-100.53) -3.8% |
| Sidewall Height inches (mm) | 7.86 (199.75) | 7.23 (183.75) | -0.63 (-16) -8% |
| Revolutions per mile (km) | 616.23 (382.91) | 640.9 (398.24) | 24.67 (15.33) 4% |
245/75-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.23 mph (30.95 km/h) |
| 25 mph (40.23 km/h) | 24.04 mph (38.68 km/h) |
| 30 mph (48.28 km/h) | 28.85 mph (46.42 km/h) |
| 35 mph (56.33 km/h) | 33.65 mph (54.16 km/h) |
| 40 mph (64.37 km/h) | 38.46 mph (61.9 km/h) |
| 45 mph (72.42 km/h) | 43.27 mph (69.63 km/h) |
| 50 mph (80.47 km/h) | 48.08 mph (77.37 km/h) |
| 55 mph (88.51 km/h) | 52.88 mph (85.11 km/h) |
| 60 mph (96.56 km/h) | 57.69 mph (92.84 km/h) |
| 65 mph (104.61 km/h) | 62.5 mph (100.58 km/h) |
| 70 mph (112.65 km/h) | 67.31 mph (108.32 km/h) |
| 75 mph (120.7 km/h) | 72.11 mph (116.05 km/h) |
| 80 mph (128.75 km/h) | 76.92 mph (123.79 km/h) |
| 85 mph (136.79 km/h) | 81.73 mph (131.53 km/h) |
| 90 mph (144.84 km/h) | 86.54 mph (139.27 km/h) |
| 95 mph (152.89 km/h) | 91.34 mph (147 km/h) |
| 100 mph (160.93 km/h) | 96.15 mph (154.74 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1631 | 1895 | 2040 | 2131 | 2228 | 2297 | 2374 | 2464 | 2589 | 2714 | 2852 | 2963 | 3165 | 3387 | 3560 | 3671 | 3734 | 3963 | 4282 | 4976 |
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