Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 445/65-22.5 | 395/70-22.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 45.28 (1150) | 44.27 (1124.5) | -1 (-25.5) -2.2% |
| Width inches (mm) | 17.52 (445) | 15.55 (395) | -1.97 (-50) -11.2% |
| Circum. inches (mm) | 142.24 (3612.83) | 139.08 (3532.72) | -3.15 (-80.11) -2.2% |
| Sidewall Height inches (mm) | 11.39 (289.25) | 10.89 (276.5) | -0.5 (-12.75) -4.4% |
| Revolutions per mile (km) | 445.45 (276.79) | 455.55 (283.07) | 10.1 (6.28) 2.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.56 mph (31.47 km/h) |
| 25 mph (40.23 km/h) | 24.45 mph (39.34 km/h) |
| 30 mph (48.28 km/h) | 29.33 mph (47.21 km/h) |
| 35 mph (56.33 km/h) | 34.22 mph (55.08 km/h) |
| 40 mph (64.37 km/h) | 39.11 mph (62.95 km/h) |
| 45 mph (72.42 km/h) | 44 mph (70.81 km/h) |
| 50 mph (80.47 km/h) | 48.89 mph (78.68 km/h) |
| 55 mph (88.51 km/h) | 53.78 mph (86.55 km/h) |
| 60 mph (96.56 km/h) | 58.67 mph (94.42 km/h) |
| 65 mph (104.61 km/h) | 63.56 mph (102.29 km/h) |
| 70 mph (112.65 km/h) | 68.45 mph (110.16 km/h) |
| 75 mph (120.7 km/h) | 73.34 mph (118.02 km/h) |
| 80 mph (128.75 km/h) | 78.23 mph (125.89 km/h) |
| 85 mph (136.79 km/h) | 83.12 mph (133.76 km/h) |
| 90 mph (144.84 km/h) | 88 mph (141.63 km/h) |
| 95 mph (152.89 km/h) | 92.89 mph (149.5 km/h) |
| 100 mph (160.93 km/h) | 97.78 mph (157.37 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
