Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 125/80-15 | 145/80-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.87 (581) | 23.13 (587.6) | 0.26 (6.6) 1.1% |
| Width inches (mm) | 4.92 (125) | 5.71 (145) | 0.79 (20) 16% |
| Circum. inches (mm) | 71.86 (1825.27) | 72.68 (1846) | 0.82 (20.73) 1.1% |
| Sidewall Height inches (mm) | 3.94 (100) | 4.57 (116) | 0.63 (16) 16% |
| Revolutions per mile (km) | 881.7 (547.86) | 871.8 (541.71) | -9.9 (-6.15) -1.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.23 mph (32.55 km/h) |
| 25 mph (40.23 km/h) | 25.28 mph (40.69 km/h) |
| 30 mph (48.28 km/h) | 30.34 mph (48.83 km/h) |
| 35 mph (56.33 km/h) | 35.4 mph (56.97 km/h) |
| 40 mph (64.37 km/h) | 40.45 mph (65.11 km/h) |
| 45 mph (72.42 km/h) | 45.51 mph (73.24 km/h) |
| 50 mph (80.47 km/h) | 50.57 mph (81.38 km/h) |
| 55 mph (88.51 km/h) | 55.62 mph (89.52 km/h) |
| 60 mph (96.56 km/h) | 60.68 mph (97.66 km/h) |
| 65 mph (104.61 km/h) | 65.74 mph (105.8 km/h) |
| 70 mph (112.65 km/h) | 70.8 mph (113.93 km/h) |
| 75 mph (120.7 km/h) | 75.85 mph (122.07 km/h) |
| 80 mph (128.75 km/h) | 80.91 mph (130.21 km/h) |
| 85 mph (136.79 km/h) | 85.97 mph (138.35 km/h) |
| 90 mph (144.84 km/h) | 91.02 mph (146.49 km/h) |
| 95 mph (152.89 km/h) | 96.08 mph (154.62 km/h) |
| 100 mph (160.93 km/h) | 101.14 mph (162.76 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2219 | 2577 | 2776 | 2898 | 3030 | 3125 | 3229 | 3351 | 3521 | 3691 | 3880 | 4031 | 4305 | 4607 | 4843 | 4994 | 5079 | 5391 | 5825 | 6769 |
Better Fuel Economy Factory Ratios Increased Power
