Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 260/70-17 | 245/60-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.33 (795.8) | 31.57 (802) | 0.24 (6.2) 0.8% |
| Width inches (mm) | 10.24 (260) | 9.65 (245) | -0.59 (-15) -5.8% |
| Circum. inches (mm) | 98.43 (2500.08) | 99.2 (2519.56) | 0.77 (19.48) 0.8% |
| Sidewall Height inches (mm) | 7.17 (182) | 5.79 (147) | -1.38 (-35) -19.2% |
| Revolutions per mile (km) | 643.72 (399.99) | 638.74 (396.89) | -4.98 (-3.09) -0.8% |
245/60-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.16 mph (32.44 km/h) |
| 25 mph (40.23 km/h) | 25.19 mph (40.55 km/h) |
| 30 mph (48.28 km/h) | 30.23 mph (48.66 km/h) |
| 35 mph (56.33 km/h) | 35.27 mph (56.77 km/h) |
| 40 mph (64.37 km/h) | 40.31 mph (64.88 km/h) |
| 45 mph (72.42 km/h) | 45.35 mph (72.98 km/h) |
| 50 mph (80.47 km/h) | 50.39 mph (81.09 km/h) |
| 55 mph (88.51 km/h) | 55.43 mph (89.2 km/h) |
| 60 mph (96.56 km/h) | 60.47 mph (97.31 km/h) |
| 65 mph (104.61 km/h) | 65.51 mph (105.42 km/h) |
| 70 mph (112.65 km/h) | 70.55 mph (113.53 km/h) |
| 75 mph (120.7 km/h) | 75.58 mph (121.64 km/h) |
| 80 mph (128.75 km/h) | 80.62 mph (129.75 km/h) |
| 85 mph (136.79 km/h) | 85.66 mph (137.86 km/h) |
| 90 mph (144.84 km/h) | 90.7 mph (145.97 km/h) |
| 95 mph (152.89 km/h) | 95.74 mph (154.08 km/h) |
| 100 mph (160.93 km/h) | 100.78 mph (162.19 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1625 | 1888 | 2034 | 2123 | 2220 | 2289 | 2366 | 2456 | 2580 | 2705 | 2843 | 2954 | 3154 | 3375 | 3548 | 3659 | 3721 | 3950 | 4268 | 4959 |
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