Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 80/70-17 | 100/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.41 (543.8) | 22.51 (571.8) | 1.1 (28) 5.1% |
| Width inches (mm) | 3.15 (80) | 3.94 (100) | 0.79 (20) 25% |
| Circum. inches (mm) | 67.26 (1708.4) | 70.72 (1796.36) | 3.46 (87.96) 5.1% |
| Sidewall Height inches (mm) | 2.2 (56) | 2.76 (70) | 0.55 (14) 25% |
| Revolutions per mile (km) | 942.02 (585.34) | 895.89 (556.68) | -46.13 (-28.66) -4.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.03 mph (33.84 km/h) |
| 25 mph (40.23 km/h) | 26.29 mph (42.31 km/h) |
| 30 mph (48.28 km/h) | 31.54 mph (50.77 km/h) |
| 35 mph (56.33 km/h) | 36.8 mph (59.23 km/h) |
| 40 mph (64.37 km/h) | 42.06 mph (67.69 km/h) |
| 45 mph (72.42 km/h) | 47.32 mph (76.15 km/h) |
| 50 mph (80.47 km/h) | 52.57 mph (84.61 km/h) |
| 55 mph (88.51 km/h) | 57.83 mph (93.07 km/h) |
| 60 mph (96.56 km/h) | 63.09 mph (101.53 km/h) |
| 65 mph (104.61 km/h) | 68.35 mph (109.99 km/h) |
| 70 mph (112.65 km/h) | 73.6 mph (118.45 km/h) |
| 75 mph (120.7 km/h) | 78.86 mph (126.92 km/h) |
| 80 mph (128.75 km/h) | 84.12 mph (135.38 km/h) |
| 85 mph (136.79 km/h) | 89.38 mph (143.84 km/h) |
| 90 mph (144.84 km/h) | 94.63 mph (152.3 km/h) |
| 95 mph (152.89 km/h) | 99.89 mph (160.76 km/h) |
| 100 mph (160.93 km/h) | 105.15 mph (169.22 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2280 | 2649 | 2852 | 2978 | 3114 | 3211 | 3318 | 3444 | 3619 | 3793 | 3987 | 4143 | 4424 | 4734 | 4977 | 5132 | 5219 | 5540 | 5986 | 6956 |
Better Fuel Economy Factory Ratios Increased Power
