Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/80-14 | 145/75-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.13 (587.6) | 22.56 (573.1) | -0.57 (-14.5) -2.5% |
| Width inches (mm) | 5.71 (145) | 5.71 (145) | 0 (0) 0% |
| Circum. inches (mm) | 72.68 (1846) | 70.88 (1800.45) | -1.79 (-45.55) -2.5% |
| Sidewall Height inches (mm) | 4.57 (116) | 4.28 (108.75) | -0.29 (-7.25) -6.3% |
| Revolutions per mile (km) | 871.8 (541.71) | 893.86 (555.42) | 22.06 (13.71) 2.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.51 mph (31.39 km/h) |
| 25 mph (40.23 km/h) | 24.38 mph (39.24 km/h) |
| 30 mph (48.28 km/h) | 29.26 mph (47.09 km/h) |
| 35 mph (56.33 km/h) | 34.14 mph (54.94 km/h) |
| 40 mph (64.37 km/h) | 39.01 mph (62.79 km/h) |
| 45 mph (72.42 km/h) | 43.89 mph (70.63 km/h) |
| 50 mph (80.47 km/h) | 48.77 mph (78.48 km/h) |
| 55 mph (88.51 km/h) | 53.64 mph (86.33 km/h) |
| 60 mph (96.56 km/h) | 58.52 mph (94.18 km/h) |
| 65 mph (104.61 km/h) | 63.4 mph (102.03 km/h) |
| 70 mph (112.65 km/h) | 68.27 mph (109.87 km/h) |
| 75 mph (120.7 km/h) | 73.15 mph (117.72 km/h) |
| 80 mph (128.75 km/h) | 78.03 mph (125.57 km/h) |
| 85 mph (136.79 km/h) | 82.9 mph (133.42 km/h) |
| 90 mph (144.84 km/h) | 87.78 mph (141.27 km/h) |
| 95 mph (152.89 km/h) | 92.66 mph (149.12 km/h) |
| 100 mph (160.93 km/h) | 97.53 mph (156.96 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
