Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 240/40-19 | 145/45-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.56 (674.6) | 24.14 (613.1) | -2.42 (-61.5) -9.1% |
| Width inches (mm) | 9.45 (240) | 5.71 (145) | -3.74 (-95) -39.6% |
| Circum. inches (mm) | 83.44 (2119.32) | 75.83 (1926.11) | -7.61 (-193.21) -9.1% |
| Sidewall Height inches (mm) | 3.78 (96) | 2.57 (65.25) | -1.21 (-30.75) -32% |
| Revolutions per mile (km) | 759.37 (471.85) | 835.54 (519.18) | 76.17 (47.33) 10% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.18 mph (29.25 km/h) |
| 25 mph (40.23 km/h) | 22.72 mph (36.57 km/h) |
| 30 mph (48.28 km/h) | 27.27 mph (43.88 km/h) |
| 35 mph (56.33 km/h) | 31.81 mph (51.19 km/h) |
| 40 mph (64.37 km/h) | 36.35 mph (58.51 km/h) |
| 45 mph (72.42 km/h) | 40.9 mph (65.82 km/h) |
| 50 mph (80.47 km/h) | 45.44 mph (73.13 km/h) |
| 55 mph (88.51 km/h) | 49.99 mph (80.44 km/h) |
| 60 mph (96.56 km/h) | 54.53 mph (87.76 km/h) |
| 65 mph (104.61 km/h) | 59.07 mph (95.07 km/h) |
| 70 mph (112.65 km/h) | 63.62 mph (102.38 km/h) |
| 75 mph (120.7 km/h) | 68.16 mph (109.7 km/h) |
| 80 mph (128.75 km/h) | 72.71 mph (117.01 km/h) |
| 85 mph (136.79 km/h) | 77.25 mph (124.32 km/h) |
| 90 mph (144.84 km/h) | 81.8 mph (131.64 km/h) |
| 95 mph (152.89 km/h) | 86.34 mph (138.95 km/h) |
| 100 mph (160.93 km/h) | 90.88 mph (146.26 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2126 | 2470 | 2660 | 2778 | 2904 | 2995 | 3094 | 3212 | 3375 | 3538 | 3719 | 3864 | 4126 | 4415 | 4642 | 4786 | 4868 | 5166 | 5583 | 6487 |
Better Fuel Economy Factory Ratios Increased Power
