Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 425/65-22.5 | 385/65-22.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 44.25 (1124) | 42.2 (1072) | -2.05 (-52) -4.6% |
| Width inches (mm) | 16.73 (425) | 15.16 (385) | -1.57 (-40) -9.4% |
| Circum. inches (mm) | 139.02 (3531.15) | 132.59 (3367.79) | -6.43 (-163.36) -4.6% |
| Sidewall Height inches (mm) | 10.88 (276.25) | 9.85 (250.25) | -1.02 (-26) -9.4% |
| Revolutions per mile (km) | 455.76 (283.19) | 477.86 (296.93) | 22.11 (13.74) 4.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.07 mph (30.7 km/h) |
| 25 mph (40.23 km/h) | 23.84 mph (38.37 km/h) |
| 30 mph (48.28 km/h) | 28.61 mph (46.05 km/h) |
| 35 mph (56.33 km/h) | 33.38 mph (53.72 km/h) |
| 40 mph (64.37 km/h) | 38.15 mph (61.4 km/h) |
| 45 mph (72.42 km/h) | 42.92 mph (69.07 km/h) |
| 50 mph (80.47 km/h) | 47.69 mph (76.74 km/h) |
| 55 mph (88.51 km/h) | 52.46 mph (84.42 km/h) |
| 60 mph (96.56 km/h) | 57.22 mph (92.09 km/h) |
| 65 mph (104.61 km/h) | 61.99 mph (99.77 km/h) |
| 70 mph (112.65 km/h) | 66.76 mph (107.44 km/h) |
| 75 mph (120.7 km/h) | 71.53 mph (115.12 km/h) |
| 80 mph (128.75 km/h) | 76.3 mph (122.79 km/h) |
| 85 mph (136.79 km/h) | 81.07 mph (130.47 km/h) |
| 90 mph (144.84 km/h) | 85.84 mph (138.14 km/h) |
| 95 mph (152.89 km/h) | 90.6 mph (145.81 km/h) |
| 100 mph (160.93 km/h) | 95.37 mph (153.49 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1216 | 1413 | 1521 | 1589 | 1661 | 1713 | 1770 | 1837 | 1930 | 2023 | 2127 | 2210 | 2360 | 2525 | 2655 | 2737 | 2784 | 2955 | 3193 | 3710 |
Better Fuel Economy Factory Ratios Increased Power
