Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 445/50-22.5 | 425/65-22.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 40.02 (1016.5) | 44.25 (1124) | 4.23 (107.5) 10.6% |
| Width inches (mm) | 17.52 (445) | 16.73 (425) | -0.79 (-20) -4.5% |
| Circum. inches (mm) | 125.73 (3193.43) | 139.02 (3531.15) | 13.3 (337.72) 10.6% |
| Sidewall Height inches (mm) | 8.76 (222.5) | 10.88 (276.25) | 2.12 (53.75) 24.2% |
| Revolutions per mile (km) | 503.95 (313.14) | 455.76 (283.19) | -48.2 (-29.95) -9.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.12 mph (35.59 km/h) |
| 25 mph (40.23 km/h) | 27.64 mph (44.49 km/h) |
| 30 mph (48.28 km/h) | 33.17 mph (53.39 km/h) |
| 35 mph (56.33 km/h) | 38.7 mph (62.28 km/h) |
| 40 mph (64.37 km/h) | 44.23 mph (71.18 km/h) |
| 45 mph (72.42 km/h) | 49.76 mph (80.08 km/h) |
| 50 mph (80.47 km/h) | 55.29 mph (88.98 km/h) |
| 55 mph (88.51 km/h) | 60.82 mph (97.87 km/h) |
| 60 mph (96.56 km/h) | 66.35 mph (106.77 km/h) |
| 65 mph (104.61 km/h) | 71.87 mph (115.67 km/h) |
| 70 mph (112.65 km/h) | 77.4 mph (124.57 km/h) |
| 75 mph (120.7 km/h) | 82.93 mph (133.47 km/h) |
| 80 mph (128.75 km/h) | 88.46 mph (142.36 km/h) |
| 85 mph (136.79 km/h) | 93.99 mph (151.26 km/h) |
| 90 mph (144.84 km/h) | 99.52 mph (160.16 km/h) |
| 95 mph (152.89 km/h) | 105.05 mph (169.06 km/h) |
| 100 mph (160.93 km/h) | 110.58 mph (177.95 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
