Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/85-18 | 235/50-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.37 (720.7) | 28.25 (717.6) | -0.12 (-3.1) -0.4% |
| Width inches (mm) | 6.1 (155) | 9.25 (235) | 3.15 (80) 51.6% |
| Circum. inches (mm) | 89.14 (2264.15) | 88.76 (2254.41) | -0.38 (-9.74) -0.4% |
| Sidewall Height inches (mm) | 5.19 (131.75) | 4.63 (117.5) | -0.56 (-14.25) -10.8% |
| Revolutions per mile (km) | 710.8 (441.67) | 713.87 (443.57) | 3.07 (1.91) 0.4% |
235/50-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.91 mph (32.05 km/h) |
| 25 mph (40.23 km/h) | 24.89 mph (40.06 km/h) |
| 30 mph (48.28 km/h) | 29.87 mph (48.07 km/h) |
| 35 mph (56.33 km/h) | 34.85 mph (56.08 km/h) |
| 40 mph (64.37 km/h) | 39.83 mph (64.1 km/h) |
| 45 mph (72.42 km/h) | 44.81 mph (72.11 km/h) |
| 50 mph (80.47 km/h) | 49.78 mph (80.12 km/h) |
| 55 mph (88.51 km/h) | 54.76 mph (88.13 km/h) |
| 60 mph (96.56 km/h) | 59.74 mph (96.15 km/h) |
| 65 mph (104.61 km/h) | 64.72 mph (104.16 km/h) |
| 70 mph (112.65 km/h) | 69.7 mph (112.17 km/h) |
| 75 mph (120.7 km/h) | 74.68 mph (120.18 km/h) |
| 80 mph (128.75 km/h) | 79.66 mph (128.19 km/h) |
| 85 mph (136.79 km/h) | 84.63 mph (136.21 km/h) |
| 90 mph (144.84 km/h) | 89.61 mph (144.22 km/h) |
| 95 mph (152.89 km/h) | 94.59 mph (152.23 km/h) |
| 100 mph (160.93 km/h) | 99.57 mph (160.24 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1817 | 2110 | 2273 | 2373 | 2481 | 2559 | 2644 | 2744 | 2883 | 3023 | 3177 | 3301 | 3525 | 3772 | 3966 | 4089 | 4159 | 4414 | 4770 | 5543 |
Better Fuel Economy Factory Ratios Increased Power
