Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 425/65-22.5 | 385/60-22.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 44.25 (1124) | 40.69 (1033.5) | -3.56 (-90.5) -8.1% |
| Width inches (mm) | 16.73 (425) | 15.16 (385) | -1.57 (-40) -9.4% |
| Circum. inches (mm) | 139.02 (3531.15) | 127.83 (3246.84) | -11.19 (-284.31) -8.1% |
| Sidewall Height inches (mm) | 10.88 (276.25) | 9.09 (231) | -1.78 (-45.25) -16.4% |
| Revolutions per mile (km) | 455.76 (283.19) | 495.67 (307.99) | 39.91 (24.8) 8.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.39 mph (29.6 km/h) |
| 25 mph (40.23 km/h) | 22.99 mph (36.99 km/h) |
| 30 mph (48.28 km/h) | 27.58 mph (44.39 km/h) |
| 35 mph (56.33 km/h) | 32.18 mph (51.79 km/h) |
| 40 mph (64.37 km/h) | 36.78 mph (59.19 km/h) |
| 45 mph (72.42 km/h) | 41.38 mph (66.59 km/h) |
| 50 mph (80.47 km/h) | 45.97 mph (73.99 km/h) |
| 55 mph (88.51 km/h) | 50.57 mph (81.39 km/h) |
| 60 mph (96.56 km/h) | 55.17 mph (88.79 km/h) |
| 65 mph (104.61 km/h) | 59.77 mph (96.18 km/h) |
| 70 mph (112.65 km/h) | 64.36 mph (103.58 km/h) |
| 75 mph (120.7 km/h) | 68.96 mph (110.98 km/h) |
| 80 mph (128.75 km/h) | 73.56 mph (118.38 km/h) |
| 85 mph (136.79 km/h) | 78.16 mph (125.78 km/h) |
| 90 mph (144.84 km/h) | 82.75 mph (133.18 km/h) |
| 95 mph (152.89 km/h) | 87.35 mph (140.58 km/h) |
| 100 mph (160.93 km/h) | 91.95 mph (147.98 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1261 | 1465 | 1578 | 1648 | 1723 | 1777 | 1836 | 1905 | 2002 | 2099 | 2206 | 2292 | 2448 | 2619 | 2754 | 2839 | 2888 | 3065 | 3312 | 3849 |
Better Fuel Economy Factory Ratios Increased Power
