Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/70-15 | 145/50-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.99 (584) | 19.71 (500.6) | -3.28 (-83.4) -14.3% |
| Width inches (mm) | 5.71 (145) | 5.71 (145) | 0 (0) 0% |
| Circum. inches (mm) | 72.23 (1834.69) | 61.92 (1572.68) | -10.32 (-262.01) -14.3% |
| Sidewall Height inches (mm) | 4 (101.5) | 2.85 (72.5) | -1.14 (-29) -28.6% |
| Revolutions per mile (km) | 877.17 (545.05) | 1023.31 (635.86) | 146.14 (90.81) 16.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.14 mph (27.59 km/h) |
| 25 mph (40.23 km/h) | 21.43 mph (34.49 km/h) |
| 30 mph (48.28 km/h) | 25.72 mph (41.39 km/h) |
| 35 mph (56.33 km/h) | 30 mph (48.28 km/h) |
| 40 mph (64.37 km/h) | 34.29 mph (55.18 km/h) |
| 45 mph (72.42 km/h) | 38.57 mph (62.08 km/h) |
| 50 mph (80.47 km/h) | 42.86 mph (68.98 km/h) |
| 55 mph (88.51 km/h) | 47.15 mph (75.87 km/h) |
| 60 mph (96.56 km/h) | 51.43 mph (82.77 km/h) |
| 65 mph (104.61 km/h) | 55.72 mph (89.67 km/h) |
| 70 mph (112.65 km/h) | 60 mph (96.57 km/h) |
| 75 mph (120.7 km/h) | 64.29 mph (103.46 km/h) |
| 80 mph (128.75 km/h) | 68.58 mph (110.36 km/h) |
| 85 mph (136.79 km/h) | 72.86 mph (117.26 km/h) |
| 90 mph (144.84 km/h) | 77.15 mph (124.16 km/h) |
| 95 mph (152.89 km/h) | 81.43 mph (131.05 km/h) |
| 100 mph (160.93 km/h) | 85.72 mph (137.95 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
