Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/80-14 | 145/75-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.5 (571.6) | 22.56 (573.1) | 0.06 (1.5) 0.3% |
| Width inches (mm) | 5.31 (135) | 5.71 (145) | 0.39 (10) 7.4% |
| Circum. inches (mm) | 70.7 (1795.73) | 70.88 (1800.45) | 0.19 (4.71) 0.3% |
| Sidewall Height inches (mm) | 4.25 (108) | 4.28 (108.75) | 0.03 (0.75) 0.7% |
| Revolutions per mile (km) | 896.2 (556.87) | 893.86 (555.42) | -2.35 (-1.46) -0.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.05 mph (32.27 km/h) |
| 25 mph (40.23 km/h) | 25.07 mph (40.34 km/h) |
| 30 mph (48.28 km/h) | 30.08 mph (48.41 km/h) |
| 35 mph (56.33 km/h) | 35.09 mph (56.47 km/h) |
| 40 mph (64.37 km/h) | 40.1 mph (64.54 km/h) |
| 45 mph (72.42 km/h) | 45.12 mph (72.61 km/h) |
| 50 mph (80.47 km/h) | 50.13 mph (80.68 km/h) |
| 55 mph (88.51 km/h) | 55.14 mph (88.75 km/h) |
| 60 mph (96.56 km/h) | 60.16 mph (96.81 km/h) |
| 65 mph (104.61 km/h) | 65.17 mph (104.88 km/h) |
| 70 mph (112.65 km/h) | 70.18 mph (112.95 km/h) |
| 75 mph (120.7 km/h) | 75.2 mph (121.02 km/h) |
| 80 mph (128.75 km/h) | 80.21 mph (129.09 km/h) |
| 85 mph (136.79 km/h) | 85.22 mph (137.15 km/h) |
| 90 mph (144.84 km/h) | 90.24 mph (145.22 km/h) |
| 95 mph (152.89 km/h) | 95.25 mph (153.29 km/h) |
| 100 mph (160.93 km/h) | 100.26 mph (161.36 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2275 | 2643 | 2846 | 2972 | 3107 | 3204 | 3310 | 3436 | 3610 | 3785 | 3978 | 4133 | 4414 | 4724 | 4966 | 5120 | 5208 | 5527 | 5972 | 6940 |
Better Fuel Economy Factory Ratios Increased Power
