Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 115/80-15 | 145/55-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.24 (565) | 22.28 (565.9) | 0.04 (0.9) 0.2% |
| Width inches (mm) | 4.53 (115) | 5.71 (145) | 1.18 (30) 26.1% |
| Circum. inches (mm) | 69.88 (1775) | 69.99 (1777.83) | 0.11 (2.83) 0.2% |
| Sidewall Height inches (mm) | 3.62 (92) | 3.14 (79.75) | -0.48 (-12.25) -13.3% |
| Revolutions per mile (km) | 906.67 (563.38) | 905.23 (562.48) | -1.44 (-0.9) -0.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.03 mph (32.24 km/h) |
| 25 mph (40.23 km/h) | 25.04 mph (40.3 km/h) |
| 30 mph (48.28 km/h) | 30.05 mph (48.36 km/h) |
| 35 mph (56.33 km/h) | 35.06 mph (56.42 km/h) |
| 40 mph (64.37 km/h) | 40.06 mph (64.48 km/h) |
| 45 mph (72.42 km/h) | 45.07 mph (72.54 km/h) |
| 50 mph (80.47 km/h) | 50.08 mph (80.6 km/h) |
| 55 mph (88.51 km/h) | 55.09 mph (88.66 km/h) |
| 60 mph (96.56 km/h) | 60.1 mph (96.71 km/h) |
| 65 mph (104.61 km/h) | 65.1 mph (104.77 km/h) |
| 70 mph (112.65 km/h) | 70.11 mph (112.83 km/h) |
| 75 mph (120.7 km/h) | 75.12 mph (120.89 km/h) |
| 80 mph (128.75 km/h) | 80.13 mph (128.95 km/h) |
| 85 mph (136.79 km/h) | 85.14 mph (137.01 km/h) |
| 90 mph (144.84 km/h) | 90.14 mph (145.07 km/h) |
| 95 mph (152.89 km/h) | 95.15 mph (153.13 km/h) |
| 100 mph (160.93 km/h) | 100.16 mph (161.19 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2304 | 2676 | 2882 | 3009 | 3147 | 3245 | 3353 | 3480 | 3656 | 3833 | 4029 | 4186 | 4470 | 4784 | 5029 | 5186 | 5274 | 5597 | 6048 | 7029 |
Better Fuel Economy Factory Ratios Increased Power
