Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 120/70-15 | 130/80-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.61 (549) | 23.19 (589) | 1.57 (40) 7.3% |
| Width inches (mm) | 4.72 (120) | 5.12 (130) | 0.39 (10) 8.3% |
| Circum. inches (mm) | 67.9 (1724.73) | 72.85 (1850.4) | 4.95 (125.66) 7.3% |
| Sidewall Height inches (mm) | 3.31 (84) | 4.09 (104) | 0.79 (20) 23.8% |
| Revolutions per mile (km) | 933.1 (579.8) | 869.73 (540.42) | -63.37 (-39.38) -6.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.46 mph (34.53 km/h) |
| 25 mph (40.23 km/h) | 26.82 mph (43.17 km/h) |
| 30 mph (48.28 km/h) | 32.19 mph (51.8 km/h) |
| 35 mph (56.33 km/h) | 37.55 mph (60.43 km/h) |
| 40 mph (64.37 km/h) | 42.91 mph (69.06 km/h) |
| 45 mph (72.42 km/h) | 48.28 mph (77.7 km/h) |
| 50 mph (80.47 km/h) | 53.64 mph (86.33 km/h) |
| 55 mph (88.51 km/h) | 59.01 mph (94.96 km/h) |
| 60 mph (96.56 km/h) | 64.37 mph (103.6 km/h) |
| 65 mph (104.61 km/h) | 69.74 mph (112.23 km/h) |
| 70 mph (112.65 km/h) | 75.1 mph (120.86 km/h) |
| 75 mph (120.7 km/h) | 80.46 mph (129.5 km/h) |
| 80 mph (128.75 km/h) | 85.83 mph (138.13 km/h) |
| 85 mph (136.79 km/h) | 91.19 mph (146.76 km/h) |
| 90 mph (144.84 km/h) | 96.56 mph (155.39 km/h) |
| 95 mph (152.89 km/h) | 101.92 mph (164.03 km/h) |
| 100 mph (160.93 km/h) | 107.29 mph (172.66 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2213 | 2571 | 2769 | 2891 | 3023 | 3117 | 3221 | 3343 | 3513 | 3683 | 3871 | 4022 | 4295 | 4596 | 4832 | 4982 | 5067 | 5378 | 5811 | 6753 |
Better Fuel Economy Factory Ratios Increased Power
