Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/90-18 | 235/45-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.69 (754.2) | 27.33 (694.1) | -2.37 (-60.1) -8% |
| Width inches (mm) | 6.5 (165) | 9.25 (235) | 2.76 (70) 42.4% |
| Circum. inches (mm) | 93.28 (2369.39) | 85.85 (2180.58) | -7.43 (-188.81) -8% |
| Sidewall Height inches (mm) | 5.85 (148.5) | 4.16 (105.75) | -1.68 (-42.75) -28.8% |
| Revolutions per mile (km) | 679.22 (422.05) | 738.04 (458.59) | 58.81 (36.54) 8.7% |
235/45-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.41 mph (29.62 km/h) |
| 25 mph (40.23 km/h) | 23.01 mph (37.03 km/h) |
| 30 mph (48.28 km/h) | 27.61 mph (44.43 km/h) |
| 35 mph (56.33 km/h) | 32.21 mph (51.84 km/h) |
| 40 mph (64.37 km/h) | 36.81 mph (59.24 km/h) |
| 45 mph (72.42 km/h) | 41.41 mph (66.65 km/h) |
| 50 mph (80.47 km/h) | 46.02 mph (74.06 km/h) |
| 55 mph (88.51 km/h) | 50.62 mph (81.46 km/h) |
| 60 mph (96.56 km/h) | 55.22 mph (88.87 km/h) |
| 65 mph (104.61 km/h) | 59.82 mph (96.27 km/h) |
| 70 mph (112.65 km/h) | 64.42 mph (103.68 km/h) |
| 75 mph (120.7 km/h) | 69.02 mph (111.08 km/h) |
| 80 mph (128.75 km/h) | 73.63 mph (118.49 km/h) |
| 85 mph (136.79 km/h) | 78.23 mph (125.89 km/h) |
| 90 mph (144.84 km/h) | 82.83 mph (133.3 km/h) |
| 95 mph (152.89 km/h) | 87.43 mph (140.7 km/h) |
| 100 mph (160.93 km/h) | 92.03 mph (148.11 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1878 | 2182 | 2350 | 2454 | 2565 | 2645 | 2733 | 2837 | 2981 | 3125 | 3285 | 3413 | 3644 | 3900 | 4100 | 4228 | 4300 | 4564 | 4931 | 5730 |
Better Fuel Economy Factory Ratios Increased Power
