Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 28/9-15 | 28/12.5-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.98 (710.76) | 28.02 (711.72) | 0.04 (0.96) 0.1% |
| Width inches (mm) | 9.02 (229) | 12.52 (318) | 3.5 (89) 38.9% |
| Circum. inches (mm) | 87.91 (2232.92) | 88.03 (2235.93) | 0.12 (3.02) 0.1% |
| Sidewall Height inches (mm) | 6.49 (164.88) | 6.51 (165.36) | 0.02 (0.48) 0.3% |
| Revolutions per mile (km) | 720.74 (447.84) | 719.76 (447.24) | -0.97 (-0.6) -0.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.03 mph (32.23 km/h) |
| 25 mph (40.23 km/h) | 25.03 mph (40.29 km/h) |
| 30 mph (48.28 km/h) | 30.04 mph (48.35 km/h) |
| 35 mph (56.33 km/h) | 35.05 mph (56.4 km/h) |
| 40 mph (64.37 km/h) | 40.05 mph (64.46 km/h) |
| 45 mph (72.42 km/h) | 45.06 mph (72.52 km/h) |
| 50 mph (80.47 km/h) | 50.07 mph (80.58 km/h) |
| 55 mph (88.51 km/h) | 55.07 mph (88.63 km/h) |
| 60 mph (96.56 km/h) | 60.08 mph (96.69 km/h) |
| 65 mph (104.61 km/h) | 65.09 mph (104.75 km/h) |
| 70 mph (112.65 km/h) | 70.09 mph (112.81 km/h) |
| 75 mph (120.7 km/h) | 75.1 mph (120.86 km/h) |
| 80 mph (128.75 km/h) | 80.11 mph (128.92 km/h) |
| 85 mph (136.79 km/h) | 85.11 mph (136.98 km/h) |
| 90 mph (144.84 km/h) | 90.12 mph (145.04 km/h) |
| 95 mph (152.89 km/h) | 95.13 mph (153.09 km/h) |
| 100 mph (160.93 km/h) | 100.14 mph (161.15 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1832 | 2128 | 2292 | 2393 | 2502 | 2580 | 2666 | 2767 | 2907 | 3048 | 3203 | 3328 | 3554 | 3804 | 3998 | 4123 | 4193 | 4451 | 4809 | 5589 |
Better Fuel Economy Factory Ratios Increased Power
