Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 445/65-22.5 | 445/50-22.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 45.28 (1150) | 40.02 (1016.5) | -5.26 (-133.5) -11.6% |
| Width inches (mm) | 17.52 (445) | 17.52 (445) | 0 (0) 0% |
| Circum. inches (mm) | 142.24 (3612.83) | 125.73 (3193.43) | -16.51 (-419.4) -11.6% |
| Sidewall Height inches (mm) | 11.39 (289.25) | 8.76 (222.5) | -2.63 (-66.75) -23.1% |
| Revolutions per mile (km) | 445.45 (276.79) | 503.95 (313.14) | 58.5 (36.35) 13.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.68 mph (28.45 km/h) |
| 25 mph (40.23 km/h) | 22.1 mph (35.56 km/h) |
| 30 mph (48.28 km/h) | 26.52 mph (42.68 km/h) |
| 35 mph (56.33 km/h) | 30.94 mph (49.79 km/h) |
| 40 mph (64.37 km/h) | 35.36 mph (56.9 km/h) |
| 45 mph (72.42 km/h) | 39.78 mph (64.01 km/h) |
| 50 mph (80.47 km/h) | 44.2 mph (71.13 km/h) |
| 55 mph (88.51 km/h) | 48.62 mph (78.24 km/h) |
| 60 mph (96.56 km/h) | 53.03 mph (85.35 km/h) |
| 65 mph (104.61 km/h) | 57.45 mph (92.46 km/h) |
| 70 mph (112.65 km/h) | 61.87 mph (99.58 km/h) |
| 75 mph (120.7 km/h) | 66.29 mph (106.69 km/h) |
| 80 mph (128.75 km/h) | 70.71 mph (113.8 km/h) |
| 85 mph (136.79 km/h) | 75.13 mph (120.91 km/h) |
| 90 mph (144.84 km/h) | 79.55 mph (128.03 km/h) |
| 95 mph (152.89 km/h) | 83.97 mph (135.14 km/h) |
| 100 mph (160.93 km/h) | 88.39 mph (142.25 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1282 | 1490 | 1604 | 1675 | 1752 | 1806 | 1866 | 1937 | 2036 | 2134 | 2243 | 2330 | 2489 | 2663 | 2800 | 2887 | 2936 | 3116 | 3367 | 3913 |
Better Fuel Economy Factory Ratios Increased Power
