Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 120/80-14 | 120/70-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.56 (547.6) | 21.61 (549) | 0.06 (1.4) 0.3% |
| Width inches (mm) | 4.72 (120) | 4.72 (120) | 0 (0) 0% |
| Circum. inches (mm) | 67.73 (1720.34) | 67.9 (1724.73) | 0.17 (4.4) 0.3% |
| Sidewall Height inches (mm) | 3.78 (96) | 3.31 (84) | -0.47 (-12) -12.5% |
| Revolutions per mile (km) | 935.48 (581.28) | 933.1 (579.8) | -2.39 (-1.48) -0.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.05 mph (32.27 km/h) |
| 25 mph (40.23 km/h) | 25.06 mph (40.34 km/h) |
| 30 mph (48.28 km/h) | 30.08 mph (48.4 km/h) |
| 35 mph (56.33 km/h) | 35.09 mph (56.47 km/h) |
| 40 mph (64.37 km/h) | 40.1 mph (64.54 km/h) |
| 45 mph (72.42 km/h) | 45.12 mph (72.61 km/h) |
| 50 mph (80.47 km/h) | 50.13 mph (80.67 km/h) |
| 55 mph (88.51 km/h) | 55.14 mph (88.74 km/h) |
| 60 mph (96.56 km/h) | 60.15 mph (96.81 km/h) |
| 65 mph (104.61 km/h) | 65.17 mph (104.88 km/h) |
| 70 mph (112.65 km/h) | 70.18 mph (112.94 km/h) |
| 75 mph (120.7 km/h) | 75.19 mph (121.01 km/h) |
| 80 mph (128.75 km/h) | 80.2 mph (129.08 km/h) |
| 85 mph (136.79 km/h) | 85.22 mph (137.14 km/h) |
| 90 mph (144.84 km/h) | 90.23 mph (145.21 km/h) |
| 95 mph (152.89 km/h) | 95.24 mph (153.28 km/h) |
| 100 mph (160.93 km/h) | 100.26 mph (161.35 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
