Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 385/65-22.5 | 315/80-22.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 42.2 (1072) | 42.34 (1075.5) | 0.14 (3.5) 0.3% |
| Width inches (mm) | 15.16 (385) | 12.4 (315) | -2.76 (-70) -18.2% |
| Circum. inches (mm) | 132.59 (3367.79) | 133.02 (3378.78) | 0.43 (11) 0.3% |
| Sidewall Height inches (mm) | 9.85 (250.25) | 9.92 (252) | 0.07 (1.75) 0.7% |
| Revolutions per mile (km) | 477.86 (296.93) | 476.31 (295.96) | -1.56 (-0.97) -0.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.07 mph (32.29 km/h) |
| 25 mph (40.23 km/h) | 25.08 mph (40.37 km/h) |
| 30 mph (48.28 km/h) | 30.1 mph (48.44 km/h) |
| 35 mph (56.33 km/h) | 35.11 mph (56.51 km/h) |
| 40 mph (64.37 km/h) | 40.13 mph (64.58 km/h) |
| 45 mph (72.42 km/h) | 45.15 mph (72.66 km/h) |
| 50 mph (80.47 km/h) | 50.16 mph (80.73 km/h) |
| 55 mph (88.51 km/h) | 55.18 mph (88.8 km/h) |
| 60 mph (96.56 km/h) | 60.2 mph (96.88 km/h) |
| 65 mph (104.61 km/h) | 65.21 mph (104.95 km/h) |
| 70 mph (112.65 km/h) | 70.23 mph (113.02 km/h) |
| 75 mph (120.7 km/h) | 75.24 mph (121.1 km/h) |
| 80 mph (128.75 km/h) | 80.26 mph (129.17 km/h) |
| 85 mph (136.79 km/h) | 85.28 mph (137.24 km/h) |
| 90 mph (144.84 km/h) | 90.29 mph (145.31 km/h) |
| 95 mph (152.89 km/h) | 95.31 mph (153.39 km/h) |
| 100 mph (160.93 km/h) | 100.33 mph (161.46 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1212 | 1408 | 1516 | 1583 | 1656 | 1707 | 1764 | 1831 | 1924 | 2017 | 2120 | 2202 | 2352 | 2517 | 2646 | 2729 | 2775 | 2945 | 3182 | 3698 |
Better Fuel Economy Factory Ratios Increased Power
