Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 140/60-18 | 140/80-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.61 (625.2) | 25.82 (655.8) | 1.2 (30.6) 4.9% |
| Width inches (mm) | 5.51 (140) | 5.51 (140) | 0 (0) 0% |
| Circum. inches (mm) | 77.33 (1964.12) | 81.11 (2060.26) | 3.78 (96.13) 4.9% |
| Sidewall Height inches (mm) | 3.31 (84) | 4.41 (112) | 1.1 (28) 33.3% |
| Revolutions per mile (km) | 819.37 (509.13) | 781.14 (485.38) | -38.23 (-23.76) -4.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.98 mph (33.76 km/h) |
| 25 mph (40.23 km/h) | 26.22 mph (42.2 km/h) |
| 30 mph (48.28 km/h) | 31.47 mph (50.64 km/h) |
| 35 mph (56.33 km/h) | 36.71 mph (59.08 km/h) |
| 40 mph (64.37 km/h) | 41.96 mph (67.52 km/h) |
| 45 mph (72.42 km/h) | 47.2 mph (75.97 km/h) |
| 50 mph (80.47 km/h) | 52.45 mph (84.41 km/h) |
| 55 mph (88.51 km/h) | 57.69 mph (92.85 km/h) |
| 60 mph (96.56 km/h) | 62.94 mph (101.29 km/h) |
| 65 mph (104.61 km/h) | 68.18 mph (109.73 km/h) |
| 70 mph (112.65 km/h) | 73.43 mph (118.17 km/h) |
| 75 mph (120.7 km/h) | 78.67 mph (126.61 km/h) |
| 80 mph (128.75 km/h) | 83.92 mph (135.05 km/h) |
| 85 mph (136.79 km/h) | 89.16 mph (143.49 km/h) |
| 90 mph (144.84 km/h) | 94.4 mph (151.93 km/h) |
| 95 mph (152.89 km/h) | 99.65 mph (160.37 km/h) |
| 100 mph (160.93 km/h) | 104.89 mph (168.81 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1988 | 2309 | 2487 | 2597 | 2715 | 2800 | 2893 | 3003 | 3155 | 3307 | 3477 | 3612 | 3857 | 4128 | 4339 | 4475 | 4551 | 4830 | 5219 | 6065 |
Better Fuel Economy Factory Ratios Increased Power
