Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 100/100-12 | 120/70-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 19.87 (504.8) | 18.61 (472.8) | -1.26 (-32) -6.3% |
| Width inches (mm) | 3.94 (100) | 4.72 (120) | 0.79 (20) 20% |
| Circum. inches (mm) | 62.44 (1585.88) | 58.48 (1485.35) | -3.96 (-100.53) -6.3% |
| Sidewall Height inches (mm) | 3.94 (100) | 3.31 (84) | -0.63 (-16) -16% |
| Revolutions per mile (km) | 1014.8 (630.57) | 1083.48 (673.24) | 68.68 (42.68) 6.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.73 mph (30.15 km/h) |
| 25 mph (40.23 km/h) | 23.42 mph (37.68 km/h) |
| 30 mph (48.28 km/h) | 28.1 mph (45.22 km/h) |
| 35 mph (56.33 km/h) | 32.78 mph (52.76 km/h) |
| 40 mph (64.37 km/h) | 37.46 mph (60.29 km/h) |
| 45 mph (72.42 km/h) | 42.15 mph (67.83 km/h) |
| 50 mph (80.47 km/h) | 46.83 mph (75.37 km/h) |
| 55 mph (88.51 km/h) | 51.51 mph (82.9 km/h) |
| 60 mph (96.56 km/h) | 56.2 mph (90.44 km/h) |
| 65 mph (104.61 km/h) | 60.88 mph (97.98 km/h) |
| 70 mph (112.65 km/h) | 65.56 mph (105.51 km/h) |
| 75 mph (120.7 km/h) | 70.25 mph (113.05 km/h) |
| 80 mph (128.75 km/h) | 74.93 mph (120.59 km/h) |
| 85 mph (136.79 km/h) | 79.61 mph (128.12 km/h) |
| 90 mph (144.84 km/h) | 84.29 mph (135.66 km/h) |
| 95 mph (152.89 km/h) | 88.98 mph (143.2 km/h) |
| 100 mph (160.93 km/h) | 93.66 mph (150.73 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
