Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 120/80-17 | 140/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.56 (623.8) | 24.72 (627.8) | 0.16 (4) 0.6% |
| Width inches (mm) | 4.72 (120) | 5.51 (140) | 0.79 (20) 16.7% |
| Circum. inches (mm) | 77.15 (1959.73) | 77.65 (1972.29) | 0.49 (12.57) 0.6% |
| Sidewall Height inches (mm) | 3.78 (96) | 3.86 (98) | 0.08 (2) 2.1% |
| Revolutions per mile (km) | 821.21 (510.27) | 815.98 (507.02) | -5.23 (-3.25) -0.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.13 mph (32.39 km/h) |
| 25 mph (40.23 km/h) | 25.16 mph (40.49 km/h) |
| 30 mph (48.28 km/h) | 30.19 mph (48.59 km/h) |
| 35 mph (56.33 km/h) | 35.22 mph (56.69 km/h) |
| 40 mph (64.37 km/h) | 40.26 mph (64.79 km/h) |
| 45 mph (72.42 km/h) | 45.29 mph (72.89 km/h) |
| 50 mph (80.47 km/h) | 50.32 mph (80.98 km/h) |
| 55 mph (88.51 km/h) | 55.35 mph (89.08 km/h) |
| 60 mph (96.56 km/h) | 60.38 mph (97.18 km/h) |
| 65 mph (104.61 km/h) | 65.42 mph (105.28 km/h) |
| 70 mph (112.65 km/h) | 70.45 mph (113.38 km/h) |
| 75 mph (120.7 km/h) | 75.48 mph (121.48 km/h) |
| 80 mph (128.75 km/h) | 80.51 mph (129.57 km/h) |
| 85 mph (136.79 km/h) | 85.55 mph (137.67 km/h) |
| 90 mph (144.84 km/h) | 90.58 mph (145.77 km/h) |
| 95 mph (152.89 km/h) | 95.61 mph (153.87 km/h) |
| 100 mph (160.93 km/h) | 100.64 mph (161.97 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
