Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 28/9-15 | 28/15.5-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.98 (710.76) | 28.03 (711.96) | 0.05 (1.2) 0.2% |
| Width inches (mm) | 9.02 (229) | 15.51 (394) | 6.5 (165) 72.1% |
| Circum. inches (mm) | 87.91 (2232.92) | 88.06 (2236.69) | 0.15 (3.77) 0.2% |
| Sidewall Height inches (mm) | 6.49 (164.88) | 6.51 (165.48) | 0.02 (0.6) 0.4% |
| Revolutions per mile (km) | 720.74 (447.84) | 719.52 (447.09) | -1.21 (-0.75) -0.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.03 mph (32.24 km/h) |
| 25 mph (40.23 km/h) | 25.04 mph (40.3 km/h) |
| 30 mph (48.28 km/h) | 30.05 mph (48.36 km/h) |
| 35 mph (56.33 km/h) | 35.06 mph (56.42 km/h) |
| 40 mph (64.37 km/h) | 40.07 mph (64.48 km/h) |
| 45 mph (72.42 km/h) | 45.08 mph (72.54 km/h) |
| 50 mph (80.47 km/h) | 50.08 mph (80.6 km/h) |
| 55 mph (88.51 km/h) | 55.09 mph (88.66 km/h) |
| 60 mph (96.56 km/h) | 60.1 mph (96.72 km/h) |
| 65 mph (104.61 km/h) | 65.11 mph (104.78 km/h) |
| 70 mph (112.65 km/h) | 70.12 mph (112.84 km/h) |
| 75 mph (120.7 km/h) | 75.13 mph (120.9 km/h) |
| 80 mph (128.75 km/h) | 80.14 mph (128.97 km/h) |
| 85 mph (136.79 km/h) | 85.14 mph (137.03 km/h) |
| 90 mph (144.84 km/h) | 90.15 mph (145.09 km/h) |
| 95 mph (152.89 km/h) | 95.16 mph (153.15 km/h) |
| 100 mph (160.93 km/h) | 100.17 mph (161.21 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1831 | 2127 | 2291 | 2392 | 2501 | 2579 | 2665 | 2766 | 2906 | 3047 | 3202 | 3327 | 3553 | 3802 | 3997 | 4122 | 4192 | 4449 | 4807 | 5587 |
Better Fuel Economy Factory Ratios Increased Power
