Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 445/65-22.5 | 425/105-22.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 45.28 (1150) | 57.64 (1464) | 12.36 (314) 27.3% |
| Width inches (mm) | 17.52 (445) | 16.73 (425) | -0.79 (-20) -4.5% |
| Circum. inches (mm) | 142.24 (3612.83) | 181.07 (4599.29) | 38.84 (986.46) 27.3% |
| Sidewall Height inches (mm) | 11.39 (289.25) | 17.57 (446.25) | 6.18 (157) 54.3% |
| Revolutions per mile (km) | 445.45 (276.79) | 349.91 (217.42) | -95.54 (-59.37) -21.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 25.46 mph (40.98 km/h) |
| 25 mph (40.23 km/h) | 31.83 mph (51.22 km/h) |
| 30 mph (48.28 km/h) | 38.19 mph (61.46 km/h) |
| 35 mph (56.33 km/h) | 44.56 mph (71.71 km/h) |
| 40 mph (64.37 km/h) | 50.92 mph (81.95 km/h) |
| 45 mph (72.42 km/h) | 57.29 mph (92.19 km/h) |
| 50 mph (80.47 km/h) | 63.65 mph (102.44 km/h) |
| 55 mph (88.51 km/h) | 70.02 mph (112.68 km/h) |
| 60 mph (96.56 km/h) | 76.38 mph (122.93 km/h) |
| 65 mph (104.61 km/h) | 82.75 mph (133.17 km/h) |
| 70 mph (112.65 km/h) | 89.11 mph (143.41 km/h) |
| 75 mph (120.7 km/h) | 95.48 mph (153.66 km/h) |
| 80 mph (128.75 km/h) | 101.84 mph (163.9 km/h) |
| 85 mph (136.79 km/h) | 108.21 mph (174.15 km/h) |
| 90 mph (144.84 km/h) | 114.57 mph (184.39 km/h) |
| 95 mph (152.89 km/h) | 120.94 mph (194.63 km/h) |
| 100 mph (160.93 km/h) | 127.3 mph (204.88 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
