Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/85-17 | 275/60-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.73 (831.3) | 32.99 (838) | 0.26 (6.7) 0.8% |
| Width inches (mm) | 9.25 (235) | 10.83 (275) | 1.57 (40) 17% |
| Circum. inches (mm) | 102.82 (2611.61) | 103.65 (2632.65) | 0.83 (21.05) 0.8% |
| Sidewall Height inches (mm) | 7.86 (199.75) | 6.5 (165) | -1.37 (-34.75) -17.4% |
| Revolutions per mile (km) | 616.23 (382.91) | 611.3 (379.84) | -4.93 (-3.06) -0.8% |
275/60-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.16 mph (32.45 km/h) |
| 25 mph (40.23 km/h) | 25.2 mph (40.56 km/h) |
| 30 mph (48.28 km/h) | 30.24 mph (48.67 km/h) |
| 35 mph (56.33 km/h) | 35.28 mph (56.78 km/h) |
| 40 mph (64.37 km/h) | 40.32 mph (64.89 km/h) |
| 45 mph (72.42 km/h) | 45.36 mph (73 km/h) |
| 50 mph (80.47 km/h) | 50.4 mph (81.12 km/h) |
| 55 mph (88.51 km/h) | 55.44 mph (89.23 km/h) |
| 60 mph (96.56 km/h) | 60.48 mph (97.34 km/h) |
| 65 mph (104.61 km/h) | 65.52 mph (105.45 km/h) |
| 70 mph (112.65 km/h) | 70.56 mph (113.56 km/h) |
| 75 mph (120.7 km/h) | 75.6 mph (121.67 km/h) |
| 80 mph (128.75 km/h) | 80.64 mph (129.79 km/h) |
| 85 mph (136.79 km/h) | 85.69 mph (137.9 km/h) |
| 90 mph (144.84 km/h) | 90.73 mph (146.01 km/h) |
| 95 mph (152.89 km/h) | 95.77 mph (154.12 km/h) |
| 100 mph (160.93 km/h) | 100.81 mph (162.23 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1556 | 1807 | 1946 | 2032 | 2125 | 2191 | 2264 | 2350 | 2469 | 2588 | 2721 | 2827 | 3019 | 3230 | 3396 | 3502 | 3561 | 3780 | 4084 | 4746 |
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