Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 240/40-18 | 260/35-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.56 (649.2) | 25.17 (639.2) | -0.39 (-10) -1.5% |
| Width inches (mm) | 9.45 (240) | 10.24 (260) | 0.79 (20) 8.3% |
| Circum. inches (mm) | 80.3 (2039.52) | 79.06 (2008.11) | -1.24 (-31.42) -1.5% |
| Sidewall Height inches (mm) | 3.78 (96) | 3.58 (91) | -0.2 (-5) -5.2% |
| Revolutions per mile (km) | 789.08 (490.31) | 801.42 (497.98) | 12.34 (7.67) 1.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.69 mph (31.69 km/h) |
| 25 mph (40.23 km/h) | 24.61 mph (39.61 km/h) |
| 30 mph (48.28 km/h) | 29.54 mph (47.54 km/h) |
| 35 mph (56.33 km/h) | 34.46 mph (55.46 km/h) |
| 40 mph (64.37 km/h) | 39.38 mph (63.38 km/h) |
| 45 mph (72.42 km/h) | 44.31 mph (71.31 km/h) |
| 50 mph (80.47 km/h) | 49.23 mph (79.23 km/h) |
| 55 mph (88.51 km/h) | 54.15 mph (87.15 km/h) |
| 60 mph (96.56 km/h) | 59.08 mph (95.07 km/h) |
| 65 mph (104.61 km/h) | 64 mph (103 km/h) |
| 70 mph (112.65 km/h) | 68.92 mph (110.92 km/h) |
| 75 mph (120.7 km/h) | 73.84 mph (118.84 km/h) |
| 80 mph (128.75 km/h) | 78.77 mph (126.76 km/h) |
| 85 mph (136.79 km/h) | 83.69 mph (134.69 km/h) |
| 90 mph (144.84 km/h) | 88.61 mph (142.61 km/h) |
| 95 mph (152.89 km/h) | 93.54 mph (150.53 km/h) |
| 100 mph (160.93 km/h) | 98.46 mph (158.46 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2039 | 2369 | 2552 | 2664 | 2786 | 2873 | 2968 | 3081 | 3237 | 3393 | 3567 | 3706 | 3957 | 4235 | 4452 | 4591 | 4669 | 4955 | 5355 | 6223 |
Better Fuel Economy Factory Ratios Increased Power
