Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 325/30-19 | 275/40-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.68 (677.6) | 27.66 (702.6) | 0.98 (25) 3.7% |
| Width inches (mm) | 12.8 (325) | 10.83 (275) | -1.97 (-50) -15.4% |
| Circum. inches (mm) | 83.81 (2128.74) | 86.9 (2207.28) | 3.09 (78.54) 3.7% |
| Sidewall Height inches (mm) | 3.84 (97.5) | 4.33 (110) | 0.49 (12.5) 12.8% |
| Revolutions per mile (km) | 756.01 (469.76) | 729.11 (453.04) | -26.9 (-16.72) -3.6% |
275/40-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.74 mph (33.37 km/h) |
| 25 mph (40.23 km/h) | 25.92 mph (41.72 km/h) |
| 30 mph (48.28 km/h) | 31.11 mph (50.06 km/h) |
| 35 mph (56.33 km/h) | 36.29 mph (58.41 km/h) |
| 40 mph (64.37 km/h) | 41.48 mph (66.75 km/h) |
| 45 mph (72.42 km/h) | 46.66 mph (75.09 km/h) |
| 50 mph (80.47 km/h) | 51.84 mph (83.44 km/h) |
| 55 mph (88.51 km/h) | 57.03 mph (91.78 km/h) |
| 60 mph (96.56 km/h) | 62.21 mph (100.12 km/h) |
| 65 mph (104.61 km/h) | 67.4 mph (108.47 km/h) |
| 70 mph (112.65 km/h) | 72.58 mph (116.81 km/h) |
| 75 mph (120.7 km/h) | 77.77 mph (125.15 km/h) |
| 80 mph (128.75 km/h) | 82.95 mph (133.5 km/h) |
| 85 mph (136.79 km/h) | 88.14 mph (141.84 km/h) |
| 90 mph (144.84 km/h) | 93.32 mph (150.19 km/h) |
| 95 mph (152.89 km/h) | 98.51 mph (158.53 km/h) |
| 100 mph (160.93 km/h) | 103.69 mph (166.87 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1855 | 2155 | 2321 | 2424 | 2534 | 2613 | 2700 | 2803 | 2945 | 3087 | 3245 | 3371 | 3600 | 3853 | 4050 | 4177 | 4248 | 4508 | 4872 | 5661 |
Better Fuel Economy Factory Ratios Increased Power
