Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 240/40-19 | 305/45-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.56 (674.6) | 27.81 (706.3) | 1.25 (31.7) 4.7% |
| Width inches (mm) | 9.45 (240) | 12.01 (305) | 2.56 (65) 27.1% |
| Circum. inches (mm) | 83.44 (2119.32) | 87.36 (2218.91) | 3.92 (99.59) 4.7% |
| Sidewall Height inches (mm) | 3.78 (96) | 5.4 (137.25) | 1.62 (41.25) 43% |
| Revolutions per mile (km) | 759.37 (471.85) | 725.29 (450.67) | -34.08 (-21.18) -4.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.94 mph (33.7 km/h) |
| 25 mph (40.23 km/h) | 26.17 mph (42.12 km/h) |
| 30 mph (48.28 km/h) | 31.41 mph (50.55 km/h) |
| 35 mph (56.33 km/h) | 36.64 mph (58.97 km/h) |
| 40 mph (64.37 km/h) | 41.88 mph (67.4 km/h) |
| 45 mph (72.42 km/h) | 47.11 mph (75.82 km/h) |
| 50 mph (80.47 km/h) | 52.35 mph (84.25 km/h) |
| 55 mph (88.51 km/h) | 57.58 mph (92.67 km/h) |
| 60 mph (96.56 km/h) | 62.82 mph (101.1 km/h) |
| 65 mph (104.61 km/h) | 68.05 mph (109.52 km/h) |
| 70 mph (112.65 km/h) | 73.29 mph (117.95 km/h) |
| 75 mph (120.7 km/h) | 78.52 mph (126.37 km/h) |
| 80 mph (128.75 km/h) | 83.76 mph (134.8 km/h) |
| 85 mph (136.79 km/h) | 88.99 mph (143.22 km/h) |
| 90 mph (144.84 km/h) | 94.23 mph (151.65 km/h) |
| 95 mph (152.89 km/h) | 99.46 mph (160.07 km/h) |
| 100 mph (160.93 km/h) | 104.7 mph (168.5 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1846 | 2144 | 2309 | 2411 | 2521 | 2600 | 2686 | 2788 | 2930 | 3071 | 3228 | 3354 | 3581 | 3833 | 4029 | 4155 | 4226 | 4485 | 4846 | 5631 |
Better Fuel Economy Factory Ratios Increased Power
