Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/80-22.5 | 385/55-22.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 42.34 (1075.5) | 39.17 (995) | -3.17 (-80.5) -7.5% |
| Width inches (mm) | 12.4 (315) | 15.16 (385) | 2.76 (70) 22.2% |
| Circum. inches (mm) | 133.02 (3378.78) | 123.07 (3125.88) | -9.96 (-252.9) -7.5% |
| Sidewall Height inches (mm) | 9.92 (252) | 8.34 (211.75) | -1.58 (-40.25) -16% |
| Revolutions per mile (km) | 476.31 (295.96) | 514.84 (319.91) | 38.54 (23.94) 8.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.5 mph (29.78 km/h) |
| 25 mph (40.23 km/h) | 23.13 mph (37.22 km/h) |
| 30 mph (48.28 km/h) | 27.75 mph (44.67 km/h) |
| 35 mph (56.33 km/h) | 32.38 mph (52.11 km/h) |
| 40 mph (64.37 km/h) | 37.01 mph (59.56 km/h) |
| 45 mph (72.42 km/h) | 41.63 mph (67 km/h) |
| 50 mph (80.47 km/h) | 46.26 mph (74.44 km/h) |
| 55 mph (88.51 km/h) | 50.88 mph (81.89 km/h) |
| 60 mph (96.56 km/h) | 55.51 mph (89.33 km/h) |
| 65 mph (104.61 km/h) | 60.13 mph (96.78 km/h) |
| 70 mph (112.65 km/h) | 64.76 mph (104.22 km/h) |
| 75 mph (120.7 km/h) | 69.39 mph (111.67 km/h) |
| 80 mph (128.75 km/h) | 74.01 mph (119.11 km/h) |
| 85 mph (136.79 km/h) | 78.64 mph (126.56 km/h) |
| 90 mph (144.84 km/h) | 83.26 mph (134 km/h) |
| 95 mph (152.89 km/h) | 87.89 mph (141.44 km/h) |
| 100 mph (160.93 km/h) | 92.52 mph (148.89 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
