Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 33/11.5-15 | 285/90-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.93 (836.52) | 35.2 (894) | 2.26 (57.48) 6.9% |
| Width inches (mm) | 11.5 (292) | 11.22 (285) | -0.28 (-7) -2.4% |
| Circum. inches (mm) | 103.46 (2628.01) | 110.57 (2808.58) | 7.11 (180.58) 6.9% |
| Sidewall Height inches (mm) | 8.97 (227.76) | 10.1 (256.5) | 1.13 (28.74) 12.6% |
| Revolutions per mile (km) | 612.38 (380.52) | 573.01 (356.05) | -39.37 (-24.47) -6.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.37 mph (34.4 km/h) |
| 25 mph (40.23 km/h) | 26.72 mph (43 km/h) |
| 30 mph (48.28 km/h) | 32.06 mph (51.6 km/h) |
| 35 mph (56.33 km/h) | 37.4 mph (60.2 km/h) |
| 40 mph (64.37 km/h) | 42.75 mph (68.8 km/h) |
| 45 mph (72.42 km/h) | 48.09 mph (77.4 km/h) |
| 50 mph (80.47 km/h) | 53.44 mph (86 km/h) |
| 55 mph (88.51 km/h) | 58.78 mph (94.6 km/h) |
| 60 mph (96.56 km/h) | 64.12 mph (103.2 km/h) |
| 65 mph (104.61 km/h) | 69.47 mph (111.8 km/h) |
| 70 mph (112.65 km/h) | 74.81 mph (120.4 km/h) |
| 75 mph (120.7 km/h) | 80.15 mph (128.99 km/h) |
| 80 mph (128.75 km/h) | 85.5 mph (137.59 km/h) |
| 85 mph (136.79 km/h) | 90.84 mph (146.19 km/h) |
| 90 mph (144.84 km/h) | 96.18 mph (154.79 km/h) |
| 95 mph (152.89 km/h) | 101.53 mph (163.39 km/h) |
| 100 mph (160.93 km/h) | 106.87 mph (171.99 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1458 | 1694 | 1824 | 1905 | 1992 | 2054 | 2122 | 2203 | 2315 | 2426 | 2550 | 2650 | 2830 | 3028 | 3183 | 3282 | 3338 | 3543 | 3829 | 4449 |
Better Fuel Economy Factory Ratios Increased Power
