Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 240/50-16 | 240/40-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.45 (646.4) | 25.56 (649.2) | 0.11 (2.8) 0.4% |
| Width inches (mm) | 9.45 (240) | 9.45 (240) | 0 (0) 0% |
| Circum. inches (mm) | 79.95 (2030.73) | 80.3 (2039.52) | 0.35 (8.8) 0.4% |
| Sidewall Height inches (mm) | 4.72 (120) | 3.78 (96) | -0.94 (-24) -20% |
| Revolutions per mile (km) | 792.5 (492.43) | 789.08 (490.31) | -3.42 (-2.12) -0.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.09 mph (32.33 km/h) |
| 25 mph (40.23 km/h) | 25.11 mph (40.41 km/h) |
| 30 mph (48.28 km/h) | 30.13 mph (48.49 km/h) |
| 35 mph (56.33 km/h) | 35.15 mph (56.57 km/h) |
| 40 mph (64.37 km/h) | 40.17 mph (64.65 km/h) |
| 45 mph (72.42 km/h) | 45.19 mph (72.73 km/h) |
| 50 mph (80.47 km/h) | 50.22 mph (80.82 km/h) |
| 55 mph (88.51 km/h) | 55.24 mph (88.9 km/h) |
| 60 mph (96.56 km/h) | 60.26 mph (96.98 km/h) |
| 65 mph (104.61 km/h) | 65.28 mph (105.06 km/h) |
| 70 mph (112.65 km/h) | 70.3 mph (113.14 km/h) |
| 75 mph (120.7 km/h) | 75.32 mph (121.22 km/h) |
| 80 mph (128.75 km/h) | 80.35 mph (129.31 km/h) |
| 85 mph (136.79 km/h) | 85.37 mph (137.39 km/h) |
| 90 mph (144.84 km/h) | 90.39 mph (145.47 km/h) |
| 95 mph (152.89 km/h) | 95.41 mph (153.55 km/h) |
| 100 mph (160.93 km/h) | 100.43 mph (161.63 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2008 | 2333 | 2512 | 2623 | 2743 | 2828 | 2922 | 3033 | 3187 | 3341 | 3512 | 3649 | 3896 | 4170 | 4384 | 4520 | 4597 | 4879 | 5272 | 6127 |
Better Fuel Economy Factory Ratios Increased Power
