Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 120/70-12 | 130/80-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 18.61 (472.8) | 20.19 (512.8) | 1.57 (40) 8.5% |
| Width inches (mm) | 4.72 (120) | 5.12 (130) | 0.39 (10) 8.3% |
| Circum. inches (mm) | 58.48 (1485.35) | 63.43 (1611.01) | 4.95 (125.66) 8.5% |
| Sidewall Height inches (mm) | 3.31 (84) | 4.09 (104) | 0.79 (20) 23.8% |
| Revolutions per mile (km) | 1083.48 (673.24) | 998.97 (620.73) | -84.51 (-52.52) -7.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.69 mph (34.91 km/h) |
| 25 mph (40.23 km/h) | 27.12 mph (43.64 km/h) |
| 30 mph (48.28 km/h) | 32.54 mph (52.37 km/h) |
| 35 mph (56.33 km/h) | 37.96 mph (61.09 km/h) |
| 40 mph (64.37 km/h) | 43.38 mph (69.82 km/h) |
| 45 mph (72.42 km/h) | 48.81 mph (78.55 km/h) |
| 50 mph (80.47 km/h) | 54.23 mph (87.28 km/h) |
| 55 mph (88.51 km/h) | 59.65 mph (96 km/h) |
| 60 mph (96.56 km/h) | 65.08 mph (104.73 km/h) |
| 65 mph (104.61 km/h) | 70.5 mph (113.46 km/h) |
| 70 mph (112.65 km/h) | 75.92 mph (122.19 km/h) |
| 75 mph (120.7 km/h) | 81.35 mph (130.91 km/h) |
| 80 mph (128.75 km/h) | 86.77 mph (139.64 km/h) |
| 85 mph (136.79 km/h) | 92.19 mph (148.37 km/h) |
| 90 mph (144.84 km/h) | 97.61 mph (157.1 km/h) |
| 95 mph (152.89 km/h) | 103.04 mph (165.82 km/h) |
| 100 mph (160.93 km/h) | 108.46 mph (174.55 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
