Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 120/70-15 | 70/70-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.61 (549) | 18.86 (479) | -2.76 (-70) -12.8% |
| Width inches (mm) | 4.72 (120) | 2.76 (70) | -1.97 (-50) -41.7% |
| Circum. inches (mm) | 67.9 (1724.73) | 59.24 (1504.82) | -8.66 (-219.91) -12.8% |
| Sidewall Height inches (mm) | 3.31 (84) | 1.93 (49) | -1.38 (-35) -41.7% |
| Revolutions per mile (km) | 933.1 (579.8) | 1069.46 (664.53) | 136.36 (84.73) 14.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.45 mph (28.08 km/h) |
| 25 mph (40.23 km/h) | 21.81 mph (35.1 km/h) |
| 30 mph (48.28 km/h) | 26.17 mph (42.12 km/h) |
| 35 mph (56.33 km/h) | 30.54 mph (49.15 km/h) |
| 40 mph (64.37 km/h) | 34.9 mph (56.17 km/h) |
| 45 mph (72.42 km/h) | 39.26 mph (63.19 km/h) |
| 50 mph (80.47 km/h) | 43.62 mph (70.21 km/h) |
| 55 mph (88.51 km/h) | 47.99 mph (77.23 km/h) |
| 60 mph (96.56 km/h) | 52.35 mph (84.25 km/h) |
| 65 mph (104.61 km/h) | 56.71 mph (91.27 km/h) |
| 70 mph (112.65 km/h) | 61.07 mph (98.29 km/h) |
| 75 mph (120.7 km/h) | 65.44 mph (105.31 km/h) |
| 80 mph (128.75 km/h) | 69.8 mph (112.33 km/h) |
| 85 mph (136.79 km/h) | 74.16 mph (119.35 km/h) |
| 90 mph (144.84 km/h) | 78.52 mph (126.37 km/h) |
| 95 mph (152.89 km/h) | 82.89 mph (133.39 km/h) |
| 100 mph (160.93 km/h) | 87.25 mph (140.41 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
