Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 125/65-12 | 145/70-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 18.4 (467.3) | 20.99 (533.2) | 2.59 (65.9) 14.1% |
| Width inches (mm) | 4.92 (125) | 5.71 (145) | 0.79 (20) 16% |
| Circum. inches (mm) | 57.8 (1468.07) | 65.95 (1675.1) | 8.15 (207.03) 14.1% |
| Sidewall Height inches (mm) | 3.2 (81.25) | 4 (101.5) | 0.8 (20.25) 24.9% |
| Revolutions per mile (km) | 1096.23 (681.17) | 960.75 (596.98) | -135.49 (-84.19) -12.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.82 mph (36.73 km/h) |
| 25 mph (40.23 km/h) | 28.53 mph (45.91 km/h) |
| 30 mph (48.28 km/h) | 34.23 mph (55.09 km/h) |
| 35 mph (56.33 km/h) | 39.94 mph (64.27 km/h) |
| 40 mph (64.37 km/h) | 45.64 mph (73.45 km/h) |
| 45 mph (72.42 km/h) | 51.35 mph (82.63 km/h) |
| 50 mph (80.47 km/h) | 57.05 mph (91.82 km/h) |
| 55 mph (88.51 km/h) | 62.76 mph (101 km/h) |
| 60 mph (96.56 km/h) | 68.46 mph (110.18 km/h) |
| 65 mph (104.61 km/h) | 74.17 mph (119.36 km/h) |
| 70 mph (112.65 km/h) | 79.87 mph (128.54 km/h) |
| 75 mph (120.7 km/h) | 85.58 mph (137.72 km/h) |
| 80 mph (128.75 km/h) | 91.28 mph (146.9 km/h) |
| 85 mph (136.79 km/h) | 96.99 mph (156.09 km/h) |
| 90 mph (144.84 km/h) | 102.69 mph (165.27 km/h) |
| 95 mph (152.89 km/h) | 108.4 mph (174.45 km/h) |
| 100 mph (160.93 km/h) | 114.1 mph (183.63 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
