Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 445/55-19.5 | 435/50-19.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 38.77 (984.8) | 36.63 (930.3) | -2.15 (-54.5) -5.5% |
| Width inches (mm) | 17.52 (445) | 17.13 (435) | -0.39 (-10) -2.2% |
| Circum. inches (mm) | 121.8 (3093.84) | 115.06 (2922.62) | -6.74 (-171.22) -5.5% |
| Sidewall Height inches (mm) | 9.64 (244.75) | 8.56 (217.5) | -1.07 (-27.25) -11.1% |
| Revolutions per mile (km) | 520.18 (323.22) | 550.65 (342.16) | 30.47 (18.94) 5.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.89 mph (30.41 km/h) |
| 25 mph (40.23 km/h) | 23.62 mph (38.01 km/h) |
| 30 mph (48.28 km/h) | 28.34 mph (45.61 km/h) |
| 35 mph (56.33 km/h) | 33.06 mph (53.21 km/h) |
| 40 mph (64.37 km/h) | 37.79 mph (60.81 km/h) |
| 45 mph (72.42 km/h) | 42.51 mph (68.41 km/h) |
| 50 mph (80.47 km/h) | 47.23 mph (76.01 km/h) |
| 55 mph (88.51 km/h) | 51.96 mph (83.62 km/h) |
| 60 mph (96.56 km/h) | 56.68 mph (91.22 km/h) |
| 65 mph (104.61 km/h) | 61.4 mph (98.82 km/h) |
| 70 mph (112.65 km/h) | 66.13 mph (106.42 km/h) |
| 75 mph (120.7 km/h) | 70.85 mph (114.02 km/h) |
| 80 mph (128.75 km/h) | 75.57 mph (121.62 km/h) |
| 85 mph (136.79 km/h) | 80.3 mph (129.22 km/h) |
| 90 mph (144.84 km/h) | 85.02 mph (136.83 km/h) |
| 95 mph (152.89 km/h) | 89.74 mph (144.43 km/h) |
| 100 mph (160.93 km/h) | 94.47 mph (152.03 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1401 | 1628 | 1753 | 1831 | 1914 | 1974 | 2039 | 2117 | 2224 | 2332 | 2451 | 2546 | 2719 | 2910 | 3059 | 3154 | 3208 | 3405 | 3679 | 4275 |
Better Fuel Economy Factory Ratios Increased Power
