Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 240/40-19 | 220/40-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.56 (674.6) | 25.93 (658.6) | -0.63 (-16) -2.4% |
| Width inches (mm) | 9.45 (240) | 8.66 (220) | -0.79 (-20) -8.3% |
| Circum. inches (mm) | 83.44 (2119.32) | 81.46 (2069.05) | -1.98 (-50.27) -2.4% |
| Sidewall Height inches (mm) | 3.78 (96) | 3.46 (88) | -0.31 (-8) -8.3% |
| Revolutions per mile (km) | 759.37 (471.85) | 777.82 (483.31) | 18.45 (11.46) 2.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.53 mph (31.42 km/h) |
| 25 mph (40.23 km/h) | 24.41 mph (39.28 km/h) |
| 30 mph (48.28 km/h) | 29.29 mph (47.14 km/h) |
| 35 mph (56.33 km/h) | 34.17 mph (54.99 km/h) |
| 40 mph (64.37 km/h) | 39.05 mph (62.85 km/h) |
| 45 mph (72.42 km/h) | 43.93 mph (70.7 km/h) |
| 50 mph (80.47 km/h) | 48.81 mph (78.56 km/h) |
| 55 mph (88.51 km/h) | 53.7 mph (86.41 km/h) |
| 60 mph (96.56 km/h) | 58.58 mph (94.27 km/h) |
| 65 mph (104.61 km/h) | 63.46 mph (102.13 km/h) |
| 70 mph (112.65 km/h) | 68.34 mph (109.98 km/h) |
| 75 mph (120.7 km/h) | 73.22 mph (117.84 km/h) |
| 80 mph (128.75 km/h) | 78.1 mph (125.69 km/h) |
| 85 mph (136.79 km/h) | 82.98 mph (133.55 km/h) |
| 90 mph (144.84 km/h) | 87.87 mph (141.41 km/h) |
| 95 mph (152.89 km/h) | 92.75 mph (149.26 km/h) |
| 100 mph (160.93 km/h) | 97.63 mph (157.12 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1979 | 2299 | 2476 | 2586 | 2704 | 2788 | 2881 | 2990 | 3142 | 3293 | 3462 | 3597 | 3841 | 4110 | 4321 | 4456 | 4532 | 4810 | 5197 | 6039 |
Better Fuel Economy Factory Ratios Increased Power
