Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 445/50-22.5 | 425/55-22.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 40.02 (1016.5) | 40.91 (1039) | 0.89 (22.5) 2.2% |
| Width inches (mm) | 17.52 (445) | 16.73 (425) | -0.79 (-20) -4.5% |
| Circum. inches (mm) | 125.73 (3193.43) | 128.51 (3264.11) | 2.78 (70.69) 2.2% |
| Sidewall Height inches (mm) | 8.76 (222.5) | 9.2 (233.75) | 0.44 (11.25) 5.1% |
| Revolutions per mile (km) | 503.95 (313.14) | 493.04 (306.36) | -10.91 (-6.78) -2.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.44 mph (32.9 km/h) |
| 25 mph (40.23 km/h) | 25.55 mph (41.12 km/h) |
| 30 mph (48.28 km/h) | 30.66 mph (49.35 km/h) |
| 35 mph (56.33 km/h) | 35.77 mph (57.57 km/h) |
| 40 mph (64.37 km/h) | 40.89 mph (65.8 km/h) |
| 45 mph (72.42 km/h) | 46 mph (74.02 km/h) |
| 50 mph (80.47 km/h) | 51.11 mph (82.25 km/h) |
| 55 mph (88.51 km/h) | 56.22 mph (90.47 km/h) |
| 60 mph (96.56 km/h) | 61.33 mph (98.7 km/h) |
| 65 mph (104.61 km/h) | 66.44 mph (106.92 km/h) |
| 70 mph (112.65 km/h) | 71.55 mph (115.15 km/h) |
| 75 mph (120.7 km/h) | 76.66 mph (123.37 km/h) |
| 80 mph (128.75 km/h) | 81.77 mph (131.6 km/h) |
| 85 mph (136.79 km/h) | 86.88 mph (139.82 km/h) |
| 90 mph (144.84 km/h) | 91.99 mph (148.05 km/h) |
| 95 mph (152.89 km/h) | 97.1 mph (156.27 km/h) |
| 100 mph (160.93 km/h) | 102.21 mph (164.5 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1255 | 1458 | 1570 | 1639 | 1714 | 1767 | 1826 | 1895 | 1991 | 2088 | 2194 | 2280 | 2435 | 2605 | 2739 | 2824 | 2872 | 3049 | 3294 | 3828 |
Better Fuel Economy Factory Ratios Increased Power
