Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 140/70-18 | 140/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.72 (653.2) | 24.72 (627.8) | -1 (-25.4) -3.9% |
| Width inches (mm) | 5.51 (140) | 5.51 (140) | 0 (0) 0% |
| Circum. inches (mm) | 80.79 (2052.09) | 77.65 (1972.29) | -3.14 (-79.8) -3.9% |
| Sidewall Height inches (mm) | 3.86 (98) | 3.86 (98) | 0 (0) 0% |
| Revolutions per mile (km) | 784.25 (487.31) | 815.98 (507.02) | 31.73 (19.72) 4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.22 mph (30.94 km/h) |
| 25 mph (40.23 km/h) | 24.03 mph (38.67 km/h) |
| 30 mph (48.28 km/h) | 28.83 mph (46.4 km/h) |
| 35 mph (56.33 km/h) | 33.64 mph (54.14 km/h) |
| 40 mph (64.37 km/h) | 38.44 mph (61.87 km/h) |
| 45 mph (72.42 km/h) | 43.25 mph (69.6 km/h) |
| 50 mph (80.47 km/h) | 48.06 mph (77.34 km/h) |
| 55 mph (88.51 km/h) | 52.86 mph (85.07 km/h) |
| 60 mph (96.56 km/h) | 57.67 mph (92.81 km/h) |
| 65 mph (104.61 km/h) | 62.47 mph (100.54 km/h) |
| 70 mph (112.65 km/h) | 67.28 mph (108.27 km/h) |
| 75 mph (120.7 km/h) | 72.08 mph (116.01 km/h) |
| 80 mph (128.75 km/h) | 76.89 mph (123.74 km/h) |
| 85 mph (136.79 km/h) | 81.69 mph (131.48 km/h) |
| 90 mph (144.84 km/h) | 86.5 mph (139.21 km/h) |
| 95 mph (152.89 km/h) | 91.31 mph (146.94 km/h) |
| 100 mph (160.93 km/h) | 96.11 mph (154.68 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2077 | 2412 | 2598 | 2713 | 2836 | 2925 | 3022 | 3137 | 3296 | 3455 | 3632 | 3773 | 4029 | 4312 | 4533 | 4674 | 4754 | 5045 | 5452 | 6336 |
Better Fuel Economy Factory Ratios Increased Power
