Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/50-14 | 445/105-30 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 20.89 (530.6) | 66.79 (1696.5) | 45.9 (1165.9) 219.7% |
| Width inches (mm) | 6.89 (175) | 17.52 (445) | 10.63 (270) 154.3% |
| Circum. inches (mm) | 65.63 (1666.93) | 209.83 (5329.71) | 144.2 (3662.78) 219.7% |
| Sidewall Height inches (mm) | 3.44 (87.5) | 18.4 (467.25) | 14.95 (379.75) 434% |
| Revolutions per mile (km) | 965.45 (599.9) | 301.96 (187.63) | -663.5 (-412.28) -68.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 63.95 mph (102.91 km/h) |
| 25 mph (40.23 km/h) | 79.93 mph (128.64 km/h) |
| 30 mph (48.28 km/h) | 95.92 mph (154.37 km/h) |
| 35 mph (56.33 km/h) | 111.91 mph (180.1 km/h) |
| 40 mph (64.37 km/h) | 127.89 mph (205.82 km/h) |
| 45 mph (72.42 km/h) | 143.88 mph (231.55 km/h) |
| 50 mph (80.47 km/h) | 159.87 mph (257.28 km/h) |
| 55 mph (88.51 km/h) | 175.85 mph (283.01 km/h) |
| 60 mph (96.56 km/h) | 191.84 mph (308.74 km/h) |
| 65 mph (104.61 km/h) | 207.83 mph (334.46 km/h) |
| 70 mph (112.65 km/h) | 223.81 mph (360.19 km/h) |
| 75 mph (120.7 km/h) | 239.8 mph (385.92 km/h) |
| 80 mph (128.75 km/h) | 255.79 mph (411.65 km/h) |
| 85 mph (136.79 km/h) | 271.77 mph (437.38 km/h) |
| 90 mph (144.84 km/h) | 287.76 mph (463.1 km/h) |
| 95 mph (152.89 km/h) | 303.75 mph (488.83 km/h) |
| 100 mph (160.93 km/h) | 319.73 mph (514.56 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
