Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 425/65-22.5 | 385/55-22.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 44.25 (1124) | 39.17 (995) | -5.08 (-129) -11.5% |
| Width inches (mm) | 16.73 (425) | 15.16 (385) | -1.57 (-40) -9.4% |
| Circum. inches (mm) | 139.02 (3531.15) | 123.07 (3125.88) | -15.96 (-405.27) -11.5% |
| Sidewall Height inches (mm) | 10.88 (276.25) | 8.34 (211.75) | -2.54 (-64.5) -23.3% |
| Revolutions per mile (km) | 455.76 (283.19) | 514.84 (319.91) | 59.09 (36.72) 13% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.7 mph (28.49 km/h) |
| 25 mph (40.23 km/h) | 22.13 mph (35.62 km/h) |
| 30 mph (48.28 km/h) | 26.56 mph (42.74 km/h) |
| 35 mph (56.33 km/h) | 30.98 mph (49.86 km/h) |
| 40 mph (64.37 km/h) | 35.41 mph (56.99 km/h) |
| 45 mph (72.42 km/h) | 39.84 mph (64.11 km/h) |
| 50 mph (80.47 km/h) | 44.26 mph (71.23 km/h) |
| 55 mph (88.51 km/h) | 48.69 mph (78.36 km/h) |
| 60 mph (96.56 km/h) | 53.11 mph (85.48 km/h) |
| 65 mph (104.61 km/h) | 57.54 mph (92.6 km/h) |
| 70 mph (112.65 km/h) | 61.97 mph (99.73 km/h) |
| 75 mph (120.7 km/h) | 66.39 mph (106.85 km/h) |
| 80 mph (128.75 km/h) | 70.82 mph (113.97 km/h) |
| 85 mph (136.79 km/h) | 75.24 mph (121.09 km/h) |
| 90 mph (144.84 km/h) | 79.67 mph (128.22 km/h) |
| 95 mph (152.89 km/h) | 84.1 mph (135.34 km/h) |
| 100 mph (160.93 km/h) | 88.52 mph (142.46 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
