Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 120/80-12 | 100/80-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 19.56 (496.8) | 18.3 (464.8) | -1.26 (-32) -6.4% |
| Width inches (mm) | 4.72 (120) | 3.94 (100) | -0.79 (-20) -16.7% |
| Circum. inches (mm) | 61.45 (1560.74) | 57.49 (1460.21) | -3.96 (-100.53) -6.4% |
| Sidewall Height inches (mm) | 3.78 (96) | 3.15 (80) | -0.63 (-16) -16.7% |
| Revolutions per mile (km) | 1031.14 (640.72) | 1102.13 (684.83) | 70.99 (44.11) 6.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.71 mph (30.11 km/h) |
| 25 mph (40.23 km/h) | 23.39 mph (37.64 km/h) |
| 30 mph (48.28 km/h) | 28.07 mph (45.17 km/h) |
| 35 mph (56.33 km/h) | 32.75 mph (52.7 km/h) |
| 40 mph (64.37 km/h) | 37.42 mph (60.23 km/h) |
| 45 mph (72.42 km/h) | 42.1 mph (67.76 km/h) |
| 50 mph (80.47 km/h) | 46.78 mph (75.28 km/h) |
| 55 mph (88.51 km/h) | 51.46 mph (82.81 km/h) |
| 60 mph (96.56 km/h) | 56.14 mph (90.34 km/h) |
| 65 mph (104.61 km/h) | 60.81 mph (97.87 km/h) |
| 70 mph (112.65 km/h) | 65.49 mph (105.4 km/h) |
| 75 mph (120.7 km/h) | 70.17 mph (112.93 km/h) |
| 80 mph (128.75 km/h) | 74.85 mph (120.45 km/h) |
| 85 mph (136.79 km/h) | 79.52 mph (127.98 km/h) |
| 90 mph (144.84 km/h) | 84.2 mph (135.51 km/h) |
| 95 mph (152.89 km/h) | 88.88 mph (143.04 km/h) |
| 100 mph (160.93 km/h) | 93.56 mph (150.57 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
