Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 285/70-18 | 290/60-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 33.71 (856.2) | 33.7 (856) | -0.01 (-0.2) -0% |
| Width inches (mm) | 11.22 (285) | 11.42 (290) | 0.2 (5) 1.8% |
| Circum. inches (mm) | 105.9 (2689.83) | 105.87 (2689.2) | -0.02 (-0.63) -0% |
| Sidewall Height inches (mm) | 7.85 (199.5) | 6.85 (174) | -1 (-25.5) -12.8% |
| Revolutions per mile (km) | 598.31 (371.77) | 598.45 (371.86) | 0.14 (0.09) 0% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20 mph (32.18 km/h) |
| 25 mph (40.23 km/h) | 24.99 mph (40.22 km/h) |
| 30 mph (48.28 km/h) | 29.99 mph (48.27 km/h) |
| 35 mph (56.33 km/h) | 34.99 mph (56.31 km/h) |
| 40 mph (64.37 km/h) | 39.99 mph (64.36 km/h) |
| 45 mph (72.42 km/h) | 44.99 mph (72.4 km/h) |
| 50 mph (80.47 km/h) | 49.99 mph (80.45 km/h) |
| 55 mph (88.51 km/h) | 54.99 mph (88.49 km/h) |
| 60 mph (96.56 km/h) | 59.99 mph (96.54 km/h) |
| 65 mph (104.61 km/h) | 64.98 mph (104.58 km/h) |
| 70 mph (112.65 km/h) | 69.98 mph (112.63 km/h) |
| 75 mph (120.7 km/h) | 74.98 mph (120.67 km/h) |
| 80 mph (128.75 km/h) | 79.98 mph (128.72 km/h) |
| 85 mph (136.79 km/h) | 84.98 mph (136.76 km/h) |
| 90 mph (144.84 km/h) | 89.98 mph (144.81 km/h) |
| 95 mph (152.89 km/h) | 94.98 mph (152.85 km/h) |
| 100 mph (160.93 km/h) | 99.98 mph (160.9 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1523 | 1769 | 1905 | 1990 | 2080 | 2145 | 2216 | 2301 | 2417 | 2534 | 2664 | 2767 | 2955 | 3163 | 3325 | 3428 | 3487 | 3700 | 3999 | 4647 |
Better Fuel Economy Factory Ratios Increased Power
