Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 120/70-12 | 120/80-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 18.61 (472.8) | 19.56 (496.8) | 0.94 (24) 5.1% |
| Width inches (mm) | 4.72 (120) | 4.72 (120) | 0 (0) 0% |
| Circum. inches (mm) | 58.48 (1485.35) | 61.45 (1560.74) | 2.97 (75.4) 5.1% |
| Sidewall Height inches (mm) | 3.31 (84) | 3.78 (96) | 0.47 (12) 14.3% |
| Revolutions per mile (km) | 1083.48 (673.24) | 1031.14 (640.72) | -52.34 (-32.52) -4.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.02 mph (33.82 km/h) |
| 25 mph (40.23 km/h) | 26.27 mph (42.28 km/h) |
| 30 mph (48.28 km/h) | 31.52 mph (50.73 km/h) |
| 35 mph (56.33 km/h) | 36.78 mph (59.19 km/h) |
| 40 mph (64.37 km/h) | 42.03 mph (67.64 km/h) |
| 45 mph (72.42 km/h) | 47.28 mph (76.1 km/h) |
| 50 mph (80.47 km/h) | 52.54 mph (84.55 km/h) |
| 55 mph (88.51 km/h) | 57.79 mph (93.01 km/h) |
| 60 mph (96.56 km/h) | 63.05 mph (101.46 km/h) |
| 65 mph (104.61 km/h) | 68.3 mph (109.92 km/h) |
| 70 mph (112.65 km/h) | 73.55 mph (118.37 km/h) |
| 75 mph (120.7 km/h) | 78.81 mph (126.83 km/h) |
| 80 mph (128.75 km/h) | 84.06 mph (135.28 km/h) |
| 85 mph (136.79 km/h) | 89.31 mph (143.74 km/h) |
| 90 mph (144.84 km/h) | 94.57 mph (152.19 km/h) |
| 95 mph (152.89 km/h) | 99.82 mph (160.65 km/h) |
| 100 mph (160.93 km/h) | 105.08 mph (169.1 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
