Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/60-13 | 145/80-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 19.85 (504.2) | 23.13 (587.6) | 3.28 (83.4) 16.5% |
| Width inches (mm) | 5.71 (145) | 5.71 (145) | 0 (0) 0% |
| Circum. inches (mm) | 62.36 (1583.99) | 72.68 (1846) | 10.32 (262.01) 16.5% |
| Sidewall Height inches (mm) | 3.43 (87) | 4.57 (116) | 1.14 (29) 33.3% |
| Revolutions per mile (km) | 1016.01 (631.32) | 871.8 (541.71) | -144.21 (-89.6) -14.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.31 mph (37.51 km/h) |
| 25 mph (40.23 km/h) | 29.14 mph (46.89 km/h) |
| 30 mph (48.28 km/h) | 34.96 mph (56.27 km/h) |
| 35 mph (56.33 km/h) | 40.79 mph (65.64 km/h) |
| 40 mph (64.37 km/h) | 46.62 mph (75.02 km/h) |
| 45 mph (72.42 km/h) | 52.44 mph (84.4 km/h) |
| 50 mph (80.47 km/h) | 58.27 mph (93.78 km/h) |
| 55 mph (88.51 km/h) | 64.1 mph (103.16 km/h) |
| 60 mph (96.56 km/h) | 69.92 mph (112.53 km/h) |
| 65 mph (104.61 km/h) | 75.75 mph (121.91 km/h) |
| 70 mph (112.65 km/h) | 81.58 mph (131.29 km/h) |
| 75 mph (120.7 km/h) | 87.41 mph (140.67 km/h) |
| 80 mph (128.75 km/h) | 93.23 mph (150.04 km/h) |
| 85 mph (136.79 km/h) | 99.06 mph (159.42 km/h) |
| 90 mph (144.84 km/h) | 104.89 mph (168.8 km/h) |
| 95 mph (152.89 km/h) | 110.71 mph (178.18 km/h) |
| 100 mph (160.93 km/h) | 116.54 mph (187.56 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
