Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 285/45-19 | 255/50-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.1 (739.1) | 29.04 (737.6) | -0.06 (-1.5) -0.2% |
| Width inches (mm) | 11.22 (285) | 10.04 (255) | -1.18 (-30) -10.5% |
| Circum. inches (mm) | 91.42 (2321.95) | 91.23 (2317.24) | -0.19 (-4.71) -0.2% |
| Sidewall Height inches (mm) | 5.05 (128.25) | 5.02 (127.5) | -0.03 (-0.75) -0.6% |
| Revolutions per mile (km) | 693.1 (430.67) | 694.51 (431.55) | 1.41 (0.88) 0.2% |
255/50-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.96 mph (32.12 km/h) |
| 25 mph (40.23 km/h) | 24.95 mph (40.15 km/h) |
| 30 mph (48.28 km/h) | 29.94 mph (48.18 km/h) |
| 35 mph (56.33 km/h) | 34.93 mph (56.21 km/h) |
| 40 mph (64.37 km/h) | 39.92 mph (64.24 km/h) |
| 45 mph (72.42 km/h) | 44.91 mph (72.27 km/h) |
| 50 mph (80.47 km/h) | 49.9 mph (80.3 km/h) |
| 55 mph (88.51 km/h) | 54.89 mph (88.33 km/h) |
| 60 mph (96.56 km/h) | 59.88 mph (96.36 km/h) |
| 65 mph (104.61 km/h) | 64.87 mph (104.4 km/h) |
| 70 mph (112.65 km/h) | 69.86 mph (112.43 km/h) |
| 75 mph (120.7 km/h) | 74.85 mph (120.46 km/h) |
| 80 mph (128.75 km/h) | 79.84 mph (128.49 km/h) |
| 85 mph (136.79 km/h) | 84.83 mph (136.52 km/h) |
| 90 mph (144.84 km/h) | 89.82 mph (144.55 km/h) |
| 95 mph (152.89 km/h) | 94.81 mph (152.58 km/h) |
| 100 mph (160.93 km/h) | 99.8 mph (160.61 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1767 | 2053 | 2211 | 2309 | 2414 | 2489 | 2572 | 2670 | 2805 | 2941 | 3091 | 3211 | 3429 | 3670 | 3858 | 3979 | 4046 | 4294 | 4640 | 5392 |
Better Fuel Economy Factory Ratios Increased Power
