Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 28/9-15 | 285/45-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.98 (710.76) | 25.1 (637.5) | -2.88 (-73.26) -10.3% |
| Width inches (mm) | 9.02 (229) | 11.22 (285) | 2.2 (56) 24.5% |
| Circum. inches (mm) | 87.91 (2232.92) | 78.85 (2002.77) | -9.06 (-230.15) -10.3% |
| Sidewall Height inches (mm) | 6.49 (164.88) | 5.05 (128.25) | -1.44 (-36.63) -22.2% |
| Revolutions per mile (km) | 720.74 (447.84) | 803.56 (499.31) | 82.83 (51.47) 11.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.94 mph (28.87 km/h) |
| 25 mph (40.23 km/h) | 22.42 mph (36.09 km/h) |
| 30 mph (48.28 km/h) | 26.91 mph (43.3 km/h) |
| 35 mph (56.33 km/h) | 31.39 mph (50.52 km/h) |
| 40 mph (64.37 km/h) | 35.88 mph (57.74 km/h) |
| 45 mph (72.42 km/h) | 40.36 mph (64.96 km/h) |
| 50 mph (80.47 km/h) | 44.85 mph (72.17 km/h) |
| 55 mph (88.51 km/h) | 49.33 mph (79.39 km/h) |
| 60 mph (96.56 km/h) | 53.82 mph (86.61 km/h) |
| 65 mph (104.61 km/h) | 58.3 mph (93.83 km/h) |
| 70 mph (112.65 km/h) | 62.78 mph (101.04 km/h) |
| 75 mph (120.7 km/h) | 67.27 mph (108.26 km/h) |
| 80 mph (128.75 km/h) | 71.75 mph (115.48 km/h) |
| 85 mph (136.79 km/h) | 76.24 mph (122.69 km/h) |
| 90 mph (144.84 km/h) | 80.72 mph (129.91 km/h) |
| 95 mph (152.89 km/h) | 85.21 mph (137.13 km/h) |
| 100 mph (160.93 km/h) | 89.69 mph (144.35 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2045 | 2376 | 2558 | 2671 | 2793 | 2880 | 2976 | 3089 | 3246 | 3402 | 3576 | 3716 | 3968 | 4246 | 4464 | 4603 | 4682 | 4969 | 5369 | 6239 |
Better Fuel Economy Factory Ratios Increased Power
