Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 80/70-17 | 375/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.41 (543.8) | 37.67 (956.8) | 16.26 (413) 75.9% |
| Width inches (mm) | 3.15 (80) | 14.76 (375) | 11.61 (295) 368.8% |
| Circum. inches (mm) | 67.26 (1708.4) | 118.34 (3005.88) | 51.08 (1297.48) 75.9% |
| Sidewall Height inches (mm) | 2.2 (56) | 10.33 (262.5) | 8.13 (206.5) 368.8% |
| Revolutions per mile (km) | 942.02 (585.34) | 535.4 (332.68) | -406.62 (-252.66) -43.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 35.19 mph (56.63 km/h) |
| 25 mph (40.23 km/h) | 43.99 mph (70.79 km/h) |
| 30 mph (48.28 km/h) | 52.78 mph (84.95 km/h) |
| 35 mph (56.33 km/h) | 61.58 mph (99.11 km/h) |
| 40 mph (64.37 km/h) | 70.38 mph (113.26 km/h) |
| 45 mph (72.42 km/h) | 79.18 mph (127.42 km/h) |
| 50 mph (80.47 km/h) | 87.97 mph (141.58 km/h) |
| 55 mph (88.51 km/h) | 96.77 mph (155.74 km/h) |
| 60 mph (96.56 km/h) | 105.57 mph (169.9 km/h) |
| 65 mph (104.61 km/h) | 114.37 mph (184.05 km/h) |
| 70 mph (112.65 km/h) | 123.16 mph (198.21 km/h) |
| 75 mph (120.7 km/h) | 131.96 mph (212.37 km/h) |
| 80 mph (128.75 km/h) | 140.76 mph (226.53 km/h) |
| 85 mph (136.79 km/h) | 149.55 mph (240.69 km/h) |
| 90 mph (144.84 km/h) | 158.35 mph (254.84 km/h) |
| 95 mph (152.89 km/h) | 167.15 mph (269 km/h) |
| 100 mph (160.93 km/h) | 175.95 mph (283.16 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1362 | 1583 | 1705 | 1780 | 1861 | 1919 | 1983 | 2058 | 2163 | 2267 | 2383 | 2476 | 2644 | 2829 | 2974 | 3067 | 3119 | 3311 | 3577 | 4157 |
Better Fuel Economy Factory Ratios Increased Power
