Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/75-17 | 245/85-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.47 (799.3) | 33.4 (848.3) | 1.93 (49) 6.1% |
| Width inches (mm) | 9.65 (245) | 9.65 (245) | 0 (0) 0% |
| Circum. inches (mm) | 98.86 (2511.08) | 104.92 (2665.01) | 6.06 (153.94) 6.1% |
| Sidewall Height inches (mm) | 7.23 (183.75) | 8.2 (208.25) | 0.96 (24.5) 13.3% |
| Revolutions per mile (km) | 640.9 (398.24) | 603.88 (375.23) | -37.02 (-23) -5.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.23 mph (34.16 km/h) |
| 25 mph (40.23 km/h) | 26.53 mph (42.7 km/h) |
| 30 mph (48.28 km/h) | 31.84 mph (51.24 km/h) |
| 35 mph (56.33 km/h) | 37.15 mph (59.78 km/h) |
| 40 mph (64.37 km/h) | 42.45 mph (68.32 km/h) |
| 45 mph (72.42 km/h) | 47.76 mph (76.86 km/h) |
| 50 mph (80.47 km/h) | 53.07 mph (85.4 km/h) |
| 55 mph (88.51 km/h) | 58.37 mph (93.94 km/h) |
| 60 mph (96.56 km/h) | 63.68 mph (102.48 km/h) |
| 65 mph (104.61 km/h) | 68.98 mph (111.02 km/h) |
| 70 mph (112.65 km/h) | 74.29 mph (119.56 km/h) |
| 75 mph (120.7 km/h) | 79.6 mph (128.1 km/h) |
| 80 mph (128.75 km/h) | 84.9 mph (136.64 km/h) |
| 85 mph (136.79 km/h) | 90.21 mph (145.18 km/h) |
| 90 mph (144.84 km/h) | 95.52 mph (153.72 km/h) |
| 95 mph (152.89 km/h) | 100.82 mph (162.26 km/h) |
| 100 mph (160.93 km/h) | 106.13 mph (170.8 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1537 | 1785 | 1923 | 2008 | 2099 | 2165 | 2236 | 2321 | 2439 | 2557 | 2688 | 2792 | 2982 | 3191 | 3355 | 3459 | 3518 | 3734 | 4035 | 4689 |
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