Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/82-15 | 445/100-21 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.65 (651.6) | 56.04 (1423.4) | 30.39 (771.8) 118.4% |
| Width inches (mm) | 6.5 (165) | 17.52 (445) | 11.02 (280) 169.7% |
| Circum. inches (mm) | 80.59 (2047.06) | 176.05 (4471.74) | 95.46 (2424.68) 118.4% |
| Sidewall Height inches (mm) | 5.33 (135.3) | 17.52 (445) | 12.19 (309.7) 228.9% |
| Revolutions per mile (km) | 786.17 (488.5) | 359.89 (223.63) | -426.28 (-264.88) -54.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 43.69 mph (70.31 km/h) |
| 25 mph (40.23 km/h) | 54.61 mph (87.89 km/h) |
| 30 mph (48.28 km/h) | 65.53 mph (105.47 km/h) |
| 35 mph (56.33 km/h) | 76.46 mph (123.04 km/h) |
| 40 mph (64.37 km/h) | 87.38 mph (140.62 km/h) |
| 45 mph (72.42 km/h) | 98.3 mph (158.2 km/h) |
| 50 mph (80.47 km/h) | 109.22 mph (175.78 km/h) |
| 55 mph (88.51 km/h) | 120.15 mph (193.36 km/h) |
| 60 mph (96.56 km/h) | 131.07 mph (210.93 km/h) |
| 65 mph (104.61 km/h) | 141.99 mph (228.51 km/h) |
| 70 mph (112.65 km/h) | 152.91 mph (246.09 km/h) |
| 75 mph (120.7 km/h) | 163.84 mph (263.67 km/h) |
| 80 mph (128.75 km/h) | 174.76 mph (281.25 km/h) |
| 85 mph (136.79 km/h) | 185.68 mph (298.82 km/h) |
| 90 mph (144.84 km/h) | 196.6 mph (316.4 km/h) |
| 95 mph (152.89 km/h) | 207.52 mph (333.98 km/h) |
| 100 mph (160.93 km/h) | 218.45 mph (351.56 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
