Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/55-16 | 45/65-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.28 (565.9) | 18.3 (464.9) | -3.98 (-101) -17.8% |
| Width inches (mm) | 5.71 (145) | 1.77 (45) | -3.94 (-100) -69% |
| Circum. inches (mm) | 69.99 (1777.83) | 57.5 (1460.53) | -12.49 (-317.3) -17.8% |
| Sidewall Height inches (mm) | 3.14 (79.75) | 1.15 (29.25) | -1.99 (-50.5) -63.3% |
| Revolutions per mile (km) | 905.23 (562.48) | 1101.89 (684.68) | 196.66 (122.2) 21.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 16.43 mph (26.44 km/h) |
| 25 mph (40.23 km/h) | 20.54 mph (33.05 km/h) |
| 30 mph (48.28 km/h) | 24.65 mph (39.66 km/h) |
| 35 mph (56.33 km/h) | 28.75 mph (46.27 km/h) |
| 40 mph (64.37 km/h) | 32.86 mph (52.88 km/h) |
| 45 mph (72.42 km/h) | 36.97 mph (59.5 km/h) |
| 50 mph (80.47 km/h) | 41.08 mph (66.11 km/h) |
| 55 mph (88.51 km/h) | 45.18 mph (72.72 km/h) |
| 60 mph (96.56 km/h) | 49.29 mph (79.33 km/h) |
| 65 mph (104.61 km/h) | 53.4 mph (85.94 km/h) |
| 70 mph (112.65 km/h) | 57.51 mph (92.55 km/h) |
| 75 mph (120.7 km/h) | 61.61 mph (99.16 km/h) |
| 80 mph (128.75 km/h) | 65.72 mph (105.77 km/h) |
| 85 mph (136.79 km/h) | 69.83 mph (112.38 km/h) |
| 90 mph (144.84 km/h) | 73.94 mph (118.99 km/h) |
| 95 mph (152.89 km/h) | 78.04 mph (125.6 km/h) |
| 100 mph (160.93 km/h) | 82.15 mph (132.21 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
