Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 250/40-18 | 260/35-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.87 (657.2) | 25.17 (639.2) | -0.71 (-18) -2.7% |
| Width inches (mm) | 9.84 (250) | 10.24 (260) | 0.39 (10) 4% |
| Circum. inches (mm) | 81.29 (2064.65) | 79.06 (2008.11) | -2.23 (-56.55) -2.7% |
| Sidewall Height inches (mm) | 3.94 (100) | 3.58 (91) | -0.35 (-9) -9% |
| Revolutions per mile (km) | 779.47 (484.34) | 801.42 (497.98) | 21.95 (13.64) 2.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.45 mph (31.31 km/h) |
| 25 mph (40.23 km/h) | 24.32 mph (39.13 km/h) |
| 30 mph (48.28 km/h) | 29.18 mph (46.96 km/h) |
| 35 mph (56.33 km/h) | 34.04 mph (54.78 km/h) |
| 40 mph (64.37 km/h) | 38.9 mph (62.61 km/h) |
| 45 mph (72.42 km/h) | 43.77 mph (70.44 km/h) |
| 50 mph (80.47 km/h) | 48.63 mph (78.26 km/h) |
| 55 mph (88.51 km/h) | 53.49 mph (86.09 km/h) |
| 60 mph (96.56 km/h) | 58.36 mph (93.92 km/h) |
| 65 mph (104.61 km/h) | 63.22 mph (101.74 km/h) |
| 70 mph (112.65 km/h) | 68.08 mph (109.57 km/h) |
| 75 mph (120.7 km/h) | 72.95 mph (117.4 km/h) |
| 80 mph (128.75 km/h) | 77.81 mph (125.22 km/h) |
| 85 mph (136.79 km/h) | 82.67 mph (133.05 km/h) |
| 90 mph (144.84 km/h) | 87.53 mph (140.87 km/h) |
| 95 mph (152.89 km/h) | 92.4 mph (148.7 km/h) |
| 100 mph (160.93 km/h) | 97.26 mph (156.53 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
