Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/65-14 | 145/50-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.42 (544.1) | 19.71 (500.6) | -1.71 (-43.5) -8% |
| Width inches (mm) | 5.71 (145) | 5.71 (145) | 0 (0) 0% |
| Circum. inches (mm) | 67.3 (1709.34) | 61.92 (1572.68) | -5.38 (-136.66) -8% |
| Sidewall Height inches (mm) | 3.71 (94.25) | 2.85 (72.5) | -0.86 (-21.75) -23.1% |
| Revolutions per mile (km) | 941.5 (585.02) | 1023.31 (635.86) | 81.81 (50.84) 8.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.4 mph (29.61 km/h) |
| 25 mph (40.23 km/h) | 23 mph (37.02 km/h) |
| 30 mph (48.28 km/h) | 27.6 mph (44.42 km/h) |
| 35 mph (56.33 km/h) | 32.2 mph (51.82 km/h) |
| 40 mph (64.37 km/h) | 36.8 mph (59.23 km/h) |
| 45 mph (72.42 km/h) | 41.4 mph (66.63 km/h) |
| 50 mph (80.47 km/h) | 46 mph (74.03 km/h) |
| 55 mph (88.51 km/h) | 50.6 mph (81.44 km/h) |
| 60 mph (96.56 km/h) | 55.2 mph (88.84 km/h) |
| 65 mph (104.61 km/h) | 59.8 mph (96.24 km/h) |
| 70 mph (112.65 km/h) | 64.4 mph (103.65 km/h) |
| 75 mph (120.7 km/h) | 69 mph (111.05 km/h) |
| 80 mph (128.75 km/h) | 73.6 mph (118.45 km/h) |
| 85 mph (136.79 km/h) | 78.2 mph (125.86 km/h) |
| 90 mph (144.84 km/h) | 82.8 mph (133.26 km/h) |
| 95 mph (152.89 km/h) | 87.4 mph (140.66 km/h) |
| 100 mph (160.93 km/h) | 92.01 mph (148.07 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
