Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 205/80-12 | 280/55-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.91 (632.8) | 26.13 (663.6) | 1.21 (30.8) 4.9% |
| Width inches (mm) | 8.07 (205) | 11.02 (280) | 2.95 (75) 36.6% |
| Circum. inches (mm) | 78.27 (1988) | 82.08 (2084.76) | 3.81 (96.76) 4.9% |
| Sidewall Height inches (mm) | 6.46 (164) | 6.06 (154) | -0.39 (-10) -6.1% |
| Revolutions per mile (km) | 809.53 (503.02) | 771.96 (479.67) | -37.57 (-23.35) -4.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.97 mph (33.75 km/h) |
| 25 mph (40.23 km/h) | 26.22 mph (42.19 km/h) |
| 30 mph (48.28 km/h) | 31.46 mph (50.63 km/h) |
| 35 mph (56.33 km/h) | 36.7 mph (59.07 km/h) |
| 40 mph (64.37 km/h) | 41.95 mph (67.51 km/h) |
| 45 mph (72.42 km/h) | 47.19 mph (75.95 km/h) |
| 50 mph (80.47 km/h) | 52.43 mph (84.38 km/h) |
| 55 mph (88.51 km/h) | 57.68 mph (92.82 km/h) |
| 60 mph (96.56 km/h) | 62.92 mph (101.26 km/h) |
| 65 mph (104.61 km/h) | 68.16 mph (109.7 km/h) |
| 70 mph (112.65 km/h) | 73.41 mph (118.14 km/h) |
| 75 mph (120.7 km/h) | 78.65 mph (126.58 km/h) |
| 80 mph (128.75 km/h) | 83.89 mph (135.01 km/h) |
| 85 mph (136.79 km/h) | 89.14 mph (143.45 km/h) |
| 90 mph (144.84 km/h) | 94.38 mph (151.89 km/h) |
| 95 mph (152.89 km/h) | 99.62 mph (160.33 km/h) |
| 100 mph (160.93 km/h) | 104.87 mph (168.77 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1964 | 2282 | 2458 | 2566 | 2683 | 2767 | 2859 | 2968 | 3118 | 3269 | 3436 | 3570 | 3812 | 4079 | 4288 | 4422 | 4497 | 4773 | 5158 | 5994 |
Better Fuel Economy Factory Ratios Increased Power
