Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 140/70-17 | 140/80-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.72 (627.8) | 25.82 (655.8) | 1.1 (28) 4.5% |
| Width inches (mm) | 5.51 (140) | 5.51 (140) | 0 (0) 0% |
| Circum. inches (mm) | 77.65 (1972.29) | 81.11 (2060.26) | 3.46 (87.96) 4.5% |
| Sidewall Height inches (mm) | 3.86 (98) | 4.41 (112) | 0.55 (14) 14.3% |
| Revolutions per mile (km) | 815.98 (507.02) | 781.14 (485.38) | -34.84 (-21.65) -4.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.89 mph (33.62 km/h) |
| 25 mph (40.23 km/h) | 26.12 mph (42.03 km/h) |
| 30 mph (48.28 km/h) | 31.34 mph (50.43 km/h) |
| 35 mph (56.33 km/h) | 36.56 mph (58.84 km/h) |
| 40 mph (64.37 km/h) | 41.78 mph (67.24 km/h) |
| 45 mph (72.42 km/h) | 47.01 mph (75.65 km/h) |
| 50 mph (80.47 km/h) | 52.23 mph (84.06 km/h) |
| 55 mph (88.51 km/h) | 57.45 mph (92.46 km/h) |
| 60 mph (96.56 km/h) | 62.68 mph (100.87 km/h) |
| 65 mph (104.61 km/h) | 67.9 mph (109.27 km/h) |
| 70 mph (112.65 km/h) | 73.12 mph (117.68 km/h) |
| 75 mph (120.7 km/h) | 78.35 mph (126.08 km/h) |
| 80 mph (128.75 km/h) | 83.57 mph (134.49 km/h) |
| 85 mph (136.79 km/h) | 88.79 mph (142.9 km/h) |
| 90 mph (144.84 km/h) | 94.01 mph (151.3 km/h) |
| 95 mph (152.89 km/h) | 99.24 mph (159.71 km/h) |
| 100 mph (160.93 km/h) | 104.46 mph (168.11 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
