Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 445/65-22.5 | 285/75-24.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 45.28 (1150) | 41.33 (1049.8) | -3.94 (-100.2) -8.7% |
| Width inches (mm) | 17.52 (445) | 11.22 (285) | -6.3 (-160) -36% |
| Circum. inches (mm) | 142.24 (3612.83) | 129.84 (3298.04) | -12.39 (-314.79) -8.7% |
| Sidewall Height inches (mm) | 11.39 (289.25) | 8.42 (213.75) | -2.97 (-75.5) -26.1% |
| Revolutions per mile (km) | 445.45 (276.79) | 487.97 (303.21) | 42.52 (26.42) 9.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.26 mph (29.38 km/h) |
| 25 mph (40.23 km/h) | 22.82 mph (36.73 km/h) |
| 30 mph (48.28 km/h) | 27.39 mph (44.07 km/h) |
| 35 mph (56.33 km/h) | 31.95 mph (51.42 km/h) |
| 40 mph (64.37 km/h) | 36.51 mph (58.76 km/h) |
| 45 mph (72.42 km/h) | 41.08 mph (66.11 km/h) |
| 50 mph (80.47 km/h) | 45.64 mph (73.46 km/h) |
| 55 mph (88.51 km/h) | 50.21 mph (80.8 km/h) |
| 60 mph (96.56 km/h) | 54.77 mph (88.15 km/h) |
| 65 mph (104.61 km/h) | 59.34 mph (95.49 km/h) |
| 70 mph (112.65 km/h) | 63.9 mph (102.84 km/h) |
| 75 mph (120.7 km/h) | 68.47 mph (110.18 km/h) |
| 80 mph (128.75 km/h) | 73.03 mph (117.53 km/h) |
| 85 mph (136.79 km/h) | 77.59 mph (124.88 km/h) |
| 90 mph (144.84 km/h) | 82.16 mph (132.22 km/h) |
| 95 mph (152.89 km/h) | 86.72 mph (139.57 km/h) |
| 100 mph (160.93 km/h) | 91.29 mph (146.91 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1242 | 1443 | 1554 | 1622 | 1696 | 1749 | 1807 | 1876 | 1971 | 2066 | 2172 | 2256 | 2410 | 2579 | 2711 | 2795 | 2843 | 3017 | 3260 | 3789 |
Better Fuel Economy Factory Ratios Increased Power
