Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 240/40-19 | 275/45-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.56 (674.6) | 28.74 (730.1) | 2.19 (55.5) 8.2% |
| Width inches (mm) | 9.45 (240) | 10.83 (275) | 1.38 (35) 14.6% |
| Circum. inches (mm) | 83.44 (2119.32) | 90.3 (2293.68) | 6.86 (174.36) 8.2% |
| Sidewall Height inches (mm) | 3.78 (96) | 4.87 (123.75) | 1.09 (27.75) 28.9% |
| Revolutions per mile (km) | 759.37 (471.85) | 701.64 (435.98) | -57.72 (-35.87) -7.6% |
275/45-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.65 mph (34.83 km/h) |
| 25 mph (40.23 km/h) | 27.06 mph (43.54 km/h) |
| 30 mph (48.28 km/h) | 32.47 mph (52.25 km/h) |
| 35 mph (56.33 km/h) | 37.88 mph (60.96 km/h) |
| 40 mph (64.37 km/h) | 43.29 mph (69.67 km/h) |
| 45 mph (72.42 km/h) | 48.7 mph (78.38 km/h) |
| 50 mph (80.47 km/h) | 54.11 mph (87.09 km/h) |
| 55 mph (88.51 km/h) | 59.52 mph (95.8 km/h) |
| 60 mph (96.56 km/h) | 64.94 mph (104.5 km/h) |
| 65 mph (104.61 km/h) | 70.35 mph (113.21 km/h) |
| 70 mph (112.65 km/h) | 75.76 mph (121.92 km/h) |
| 75 mph (120.7 km/h) | 81.17 mph (130.63 km/h) |
| 80 mph (128.75 km/h) | 86.58 mph (139.34 km/h) |
| 85 mph (136.79 km/h) | 91.99 mph (148.05 km/h) |
| 90 mph (144.84 km/h) | 97.4 mph (156.76 km/h) |
| 95 mph (152.89 km/h) | 102.82 mph (165.47 km/h) |
| 100 mph (160.93 km/h) | 108.23 mph (174.17 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1786 | 2074 | 2234 | 2333 | 2439 | 2515 | 2599 | 2697 | 2834 | 2971 | 3123 | 3244 | 3465 | 3708 | 3898 | 4019 | 4088 | 4339 | 4688 | 5448 |
Better Fuel Economy Factory Ratios Increased Power
