Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 205/80-15 | 28/8-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.91 (709) | 27.95 (709.86) | 0.03 (0.86) 0.1% |
| Width inches (mm) | 8.07 (205) | 7.99 (203) | -0.08 (-2) -1% |
| Circum. inches (mm) | 87.69 (2227.39) | 87.8 (2230.09) | 0.11 (2.7) 0.1% |
| Sidewall Height inches (mm) | 6.46 (164) | 6.47 (164.43) | 0.02 (0.43) 0.3% |
| Revolutions per mile (km) | 722.52 (448.96) | 721.65 (448.41) | -0.88 (-0.54) -0.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.02 mph (32.23 km/h) |
| 25 mph (40.23 km/h) | 25.03 mph (40.28 km/h) |
| 30 mph (48.28 km/h) | 30.04 mph (48.34 km/h) |
| 35 mph (56.33 km/h) | 35.04 mph (56.4 km/h) |
| 40 mph (64.37 km/h) | 40.05 mph (64.45 km/h) |
| 45 mph (72.42 km/h) | 45.05 mph (72.51 km/h) |
| 50 mph (80.47 km/h) | 50.06 mph (80.56 km/h) |
| 55 mph (88.51 km/h) | 55.07 mph (88.62 km/h) |
| 60 mph (96.56 km/h) | 60.07 mph (96.68 km/h) |
| 65 mph (104.61 km/h) | 65.08 mph (104.73 km/h) |
| 70 mph (112.65 km/h) | 70.08 mph (112.79 km/h) |
| 75 mph (120.7 km/h) | 75.09 mph (120.85 km/h) |
| 80 mph (128.75 km/h) | 80.1 mph (128.9 km/h) |
| 85 mph (136.79 km/h) | 85.1 mph (136.96 km/h) |
| 90 mph (144.84 km/h) | 90.11 mph (145.02 km/h) |
| 95 mph (152.89 km/h) | 95.12 mph (153.07 km/h) |
| 100 mph (160.93 km/h) | 100.12 mph (161.13 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1836 | 2133 | 2298 | 2399 | 2509 | 2587 | 2673 | 2774 | 2915 | 3056 | 3212 | 3337 | 3564 | 3814 | 4009 | 4134 | 4204 | 4462 | 4822 | 5603 |
Better Fuel Economy Factory Ratios Increased Power
