Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 33/11.5-15 | 285/85-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.93 (836.52) | 34.07 (865.5) | 1.14 (28.98) 3.5% |
| Width inches (mm) | 11.5 (292) | 11.22 (285) | -0.28 (-7) -2.4% |
| Circum. inches (mm) | 103.46 (2628.01) | 107.05 (2719.05) | 3.58 (91.04) 3.5% |
| Sidewall Height inches (mm) | 8.97 (227.76) | 9.54 (242.25) | 0.57 (14.49) 6.4% |
| Revolutions per mile (km) | 612.38 (380.52) | 591.88 (367.78) | -20.5 (-12.74) -3.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.69 mph (33.3 km/h) |
| 25 mph (40.23 km/h) | 25.87 mph (41.63 km/h) |
| 30 mph (48.28 km/h) | 31.04 mph (49.95 km/h) |
| 35 mph (56.33 km/h) | 36.21 mph (58.28 km/h) |
| 40 mph (64.37 km/h) | 41.39 mph (66.6 km/h) |
| 45 mph (72.42 km/h) | 46.56 mph (74.93 km/h) |
| 50 mph (80.47 km/h) | 51.73 mph (83.26 km/h) |
| 55 mph (88.51 km/h) | 56.91 mph (91.58 km/h) |
| 60 mph (96.56 km/h) | 62.08 mph (99.91 km/h) |
| 65 mph (104.61 km/h) | 67.25 mph (108.23 km/h) |
| 70 mph (112.65 km/h) | 72.43 mph (116.56 km/h) |
| 75 mph (120.7 km/h) | 77.6 mph (124.88 km/h) |
| 80 mph (128.75 km/h) | 82.77 mph (133.21 km/h) |
| 85 mph (136.79 km/h) | 87.94 mph (141.53 km/h) |
| 90 mph (144.84 km/h) | 93.12 mph (149.86 km/h) |
| 95 mph (152.89 km/h) | 98.29 mph (158.18 km/h) |
| 100 mph (160.93 km/h) | 103.46 mph (166.51 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1506 | 1750 | 1884 | 1968 | 2057 | 2122 | 2192 | 2275 | 2391 | 2506 | 2634 | 2737 | 2923 | 3128 | 3288 | 3391 | 3448 | 3660 | 3955 | 4596 |
Better Fuel Economy Factory Ratios Increased Power
