Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 285/25-20 | 225/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.61 (650.5) | 29.4 (746.8) | 3.79 (96.3) 14.8% |
| Width inches (mm) | 11.22 (285) | 8.86 (225) | -2.36 (-60) -21.1% |
| Circum. inches (mm) | 80.46 (2043.61) | 92.37 (2346.14) | 11.91 (302.54) 14.8% |
| Sidewall Height inches (mm) | 2.81 (71.25) | 6.2 (157.5) | 3.4 (86.25) 121.1% |
| Revolutions per mile (km) | 787.5 (489.33) | 685.95 (426.23) | -101.55 (-63.1) -12.9% |
225/70-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.96 mph (36.95 km/h) |
| 25 mph (40.23 km/h) | 28.7 mph (46.19 km/h) |
| 30 mph (48.28 km/h) | 34.44 mph (55.43 km/h) |
| 35 mph (56.33 km/h) | 40.18 mph (64.67 km/h) |
| 40 mph (64.37 km/h) | 45.92 mph (73.9 km/h) |
| 45 mph (72.42 km/h) | 51.66 mph (83.14 km/h) |
| 50 mph (80.47 km/h) | 57.4 mph (92.38 km/h) |
| 55 mph (88.51 km/h) | 63.14 mph (101.62 km/h) |
| 60 mph (96.56 km/h) | 68.88 mph (110.86 km/h) |
| 65 mph (104.61 km/h) | 74.62 mph (120.09 km/h) |
| 70 mph (112.65 km/h) | 80.36 mph (129.33 km/h) |
| 75 mph (120.7 km/h) | 86.1 mph (138.57 km/h) |
| 80 mph (128.75 km/h) | 91.84 mph (147.81 km/h) |
| 85 mph (136.79 km/h) | 97.58 mph (157.05 km/h) |
| 90 mph (144.84 km/h) | 103.32 mph (166.28 km/h) |
| 95 mph (152.89 km/h) | 109.06 mph (175.52 km/h) |
| 100 mph (160.93 km/h) | 114.8 mph (184.76 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1746 | 2028 | 2184 | 2280 | 2384 | 2459 | 2540 | 2637 | 2771 | 2904 | 3053 | 3172 | 3387 | 3625 | 3811 | 3930 | 3996 | 4241 | 4583 | 5326 |
Better Fuel Economy Factory Ratios Increased Power
