Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 29.5/10.5-15 | 275/40-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.51 (749.46) | 27.66 (702.6) | -1.84 (-46.86) -6.3% |
| Width inches (mm) | 10.51 (267) | 10.83 (275) | 0.31 (8) 3% |
| Circum. inches (mm) | 92.7 (2354.5) | 86.9 (2207.28) | -5.8 (-147.22) -6.3% |
| Sidewall Height inches (mm) | 7.25 (184.23) | 4.33 (110) | -2.92 (-74.23) -40.3% |
| Revolutions per mile (km) | 683.52 (424.72) | 729.11 (453.04) | 45.59 (28.33) 6.7% |
275/40-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.75 mph (30.17 km/h) |
| 25 mph (40.23 km/h) | 23.44 mph (37.72 km/h) |
| 30 mph (48.28 km/h) | 28.12 mph (45.26 km/h) |
| 35 mph (56.33 km/h) | 32.81 mph (52.81 km/h) |
| 40 mph (64.37 km/h) | 37.5 mph (60.35 km/h) |
| 45 mph (72.42 km/h) | 42.19 mph (67.89 km/h) |
| 50 mph (80.47 km/h) | 46.87 mph (75.44 km/h) |
| 55 mph (88.51 km/h) | 51.56 mph (82.98 km/h) |
| 60 mph (96.56 km/h) | 56.25 mph (90.52 km/h) |
| 65 mph (104.61 km/h) | 60.94 mph (98.07 km/h) |
| 70 mph (112.65 km/h) | 65.62 mph (105.61 km/h) |
| 75 mph (120.7 km/h) | 70.31 mph (113.15 km/h) |
| 80 mph (128.75 km/h) | 75 mph (120.7 km/h) |
| 85 mph (136.79 km/h) | 79.69 mph (128.24 km/h) |
| 90 mph (144.84 km/h) | 84.37 mph (135.79 km/h) |
| 95 mph (152.89 km/h) | 89.06 mph (143.33 km/h) |
| 100 mph (160.93 km/h) | 93.75 mph (150.87 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
