Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 140/70-18 | 130/70-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.72 (653.2) | 25.17 (639.2) | -0.55 (-14) -2.1% |
| Width inches (mm) | 5.51 (140) | 5.12 (130) | -0.39 (-10) -7.1% |
| Circum. inches (mm) | 80.79 (2052.09) | 79.06 (2008.11) | -1.73 (-43.98) -2.1% |
| Sidewall Height inches (mm) | 3.86 (98) | 3.58 (91) | -0.28 (-7) -7.1% |
| Revolutions per mile (km) | 784.25 (487.31) | 801.42 (497.98) | 17.18 (10.67) 2.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.57 mph (31.5 km/h) |
| 25 mph (40.23 km/h) | 24.46 mph (39.37 km/h) |
| 30 mph (48.28 km/h) | 29.36 mph (47.25 km/h) |
| 35 mph (56.33 km/h) | 34.25 mph (55.12 km/h) |
| 40 mph (64.37 km/h) | 39.14 mph (62.99 km/h) |
| 45 mph (72.42 km/h) | 44.04 mph (70.87 km/h) |
| 50 mph (80.47 km/h) | 48.93 mph (78.74 km/h) |
| 55 mph (88.51 km/h) | 53.82 mph (86.62 km/h) |
| 60 mph (96.56 km/h) | 58.71 mph (94.49 km/h) |
| 65 mph (104.61 km/h) | 63.61 mph (102.37 km/h) |
| 70 mph (112.65 km/h) | 68.5 mph (110.24 km/h) |
| 75 mph (120.7 km/h) | 73.39 mph (118.11 km/h) |
| 80 mph (128.75 km/h) | 78.29 mph (125.99 km/h) |
| 85 mph (136.79 km/h) | 83.18 mph (133.86 km/h) |
| 90 mph (144.84 km/h) | 88.07 mph (141.74 km/h) |
| 95 mph (152.89 km/h) | 92.96 mph (149.61 km/h) |
| 100 mph (160.93 km/h) | 97.86 mph (157.49 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
