Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/65-14 | 165/50-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.42 (544.1) | 20.5 (520.6) | -0.93 (-23.5) -4.3% |
| Width inches (mm) | 5.71 (145) | 6.5 (165) | 0.79 (20) 13.8% |
| Circum. inches (mm) | 67.3 (1709.34) | 64.39 (1635.51) | -2.91 (-73.83) -4.3% |
| Sidewall Height inches (mm) | 3.71 (94.25) | 3.25 (82.5) | -0.46 (-11.75) -12.5% |
| Revolutions per mile (km) | 941.5 (585.02) | 984 (611.43) | 42.5 (26.41) 4.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.14 mph (30.8 km/h) |
| 25 mph (40.23 km/h) | 23.92 mph (38.5 km/h) |
| 30 mph (48.28 km/h) | 28.7 mph (46.2 km/h) |
| 35 mph (56.33 km/h) | 33.49 mph (53.89 km/h) |
| 40 mph (64.37 km/h) | 38.27 mph (61.59 km/h) |
| 45 mph (72.42 km/h) | 43.06 mph (69.29 km/h) |
| 50 mph (80.47 km/h) | 47.84 mph (76.99 km/h) |
| 55 mph (88.51 km/h) | 52.62 mph (84.69 km/h) |
| 60 mph (96.56 km/h) | 57.41 mph (92.39 km/h) |
| 65 mph (104.61 km/h) | 62.19 mph (100.09 km/h) |
| 70 mph (112.65 km/h) | 66.98 mph (107.79 km/h) |
| 75 mph (120.7 km/h) | 71.76 mph (115.49 km/h) |
| 80 mph (128.75 km/h) | 76.54 mph (123.19 km/h) |
| 85 mph (136.79 km/h) | 81.33 mph (130.89 km/h) |
| 90 mph (144.84 km/h) | 86.11 mph (138.59 km/h) |
| 95 mph (152.89 km/h) | 90.9 mph (146.28 km/h) |
| 100 mph (160.93 km/h) | 95.68 mph (153.98 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
