Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/82-15 | 385/45-28 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.65 (651.6) | 41.64 (1057.7) | 15.99 (406.1) 62.3% |
| Width inches (mm) | 6.5 (165) | 15.16 (385) | 8.66 (220) 133.3% |
| Circum. inches (mm) | 80.59 (2047.06) | 130.82 (3322.86) | 50.23 (1275.8) 62.3% |
| Sidewall Height inches (mm) | 5.33 (135.3) | 6.82 (173.25) | 1.49 (37.95) 28% |
| Revolutions per mile (km) | 786.17 (488.5) | 484.32 (300.94) | -301.85 (-187.56) -38.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 32.46 mph (52.25 km/h) |
| 25 mph (40.23 km/h) | 40.58 mph (65.31 km/h) |
| 30 mph (48.28 km/h) | 48.7 mph (78.37 km/h) |
| 35 mph (56.33 km/h) | 56.81 mph (91.43 km/h) |
| 40 mph (64.37 km/h) | 64.93 mph (104.49 km/h) |
| 45 mph (72.42 km/h) | 73.05 mph (117.56 km/h) |
| 50 mph (80.47 km/h) | 81.16 mph (130.62 km/h) |
| 55 mph (88.51 km/h) | 89.28 mph (143.68 km/h) |
| 60 mph (96.56 km/h) | 97.39 mph (156.74 km/h) |
| 65 mph (104.61 km/h) | 105.51 mph (169.8 km/h) |
| 70 mph (112.65 km/h) | 113.63 mph (182.86 km/h) |
| 75 mph (120.7 km/h) | 121.74 mph (195.93 km/h) |
| 80 mph (128.75 km/h) | 129.86 mph (208.99 km/h) |
| 85 mph (136.79 km/h) | 137.97 mph (222.05 km/h) |
| 90 mph (144.84 km/h) | 146.09 mph (235.11 km/h) |
| 95 mph (152.89 km/h) | 154.21 mph (248.17 km/h) |
| 100 mph (160.93 km/h) | 162.32 mph (261.23 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1233 | 1432 | 1542 | 1610 | 1684 | 1736 | 1794 | 1862 | 1956 | 2051 | 2156 | 2240 | 2392 | 2559 | 2691 | 2774 | 2822 | 2995 | 3236 | 3760 |
Better Fuel Economy Factory Ratios Increased Power
