Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 445/50-22.5 | 385/55-22.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 40.02 (1016.5) | 39.17 (995) | -0.85 (-21.5) -2.1% |
| Width inches (mm) | 17.52 (445) | 15.16 (385) | -2.36 (-60) -13.5% |
| Circum. inches (mm) | 125.73 (3193.43) | 123.07 (3125.88) | -2.66 (-67.54) -2.1% |
| Sidewall Height inches (mm) | 8.76 (222.5) | 8.34 (211.75) | -0.42 (-10.75) -4.8% |
| Revolutions per mile (km) | 503.95 (313.14) | 514.84 (319.91) | 10.89 (6.77) 2.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.58 mph (31.51 km/h) |
| 25 mph (40.23 km/h) | 24.47 mph (39.38 km/h) |
| 30 mph (48.28 km/h) | 29.37 mph (47.26 km/h) |
| 35 mph (56.33 km/h) | 34.26 mph (55.14 km/h) |
| 40 mph (64.37 km/h) | 39.15 mph (63.01 km/h) |
| 45 mph (72.42 km/h) | 44.05 mph (70.89 km/h) |
| 50 mph (80.47 km/h) | 48.94 mph (78.77 km/h) |
| 55 mph (88.51 km/h) | 53.84 mph (86.64 km/h) |
| 60 mph (96.56 km/h) | 58.73 mph (94.52 km/h) |
| 65 mph (104.61 km/h) | 63.63 mph (102.4 km/h) |
| 70 mph (112.65 km/h) | 68.52 mph (110.27 km/h) |
| 75 mph (120.7 km/h) | 73.41 mph (118.15 km/h) |
| 80 mph (128.75 km/h) | 78.31 mph (126.02 km/h) |
| 85 mph (136.79 km/h) | 83.2 mph (133.9 km/h) |
| 90 mph (144.84 km/h) | 88.1 mph (141.78 km/h) |
| 95 mph (152.89 km/h) | 92.99 mph (149.65 km/h) |
| 100 mph (160.93 km/h) | 97.88 mph (157.53 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1310 | 1522 | 1639 | 1712 | 1790 | 1845 | 1907 | 1979 | 2080 | 2180 | 2291 | 2381 | 2542 | 2721 | 2860 | 2949 | 2999 | 3183 | 3440 | 3997 |
Better Fuel Economy Factory Ratios Increased Power
