Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/40-19 | 305/35-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.66 (702.6) | 27.41 (696.1) | -0.26 (-6.5) -0.9% |
| Width inches (mm) | 10.83 (275) | 12.01 (305) | 1.18 (30) 10.9% |
| Circum. inches (mm) | 86.9 (2207.28) | 86.1 (2186.86) | -0.8 (-20.42) -0.9% |
| Sidewall Height inches (mm) | 4.33 (110) | 4.2 (106.75) | -0.13 (-3.25) -3% |
| Revolutions per mile (km) | 729.11 (453.04) | 735.91 (457.28) | 6.81 (4.23) 0.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.81 mph (31.89 km/h) |
| 25 mph (40.23 km/h) | 24.77 mph (39.86 km/h) |
| 30 mph (48.28 km/h) | 29.72 mph (47.83 km/h) |
| 35 mph (56.33 km/h) | 34.68 mph (55.81 km/h) |
| 40 mph (64.37 km/h) | 39.63 mph (63.78 km/h) |
| 45 mph (72.42 km/h) | 44.58 mph (71.75 km/h) |
| 50 mph (80.47 km/h) | 49.54 mph (79.72 km/h) |
| 55 mph (88.51 km/h) | 54.49 mph (87.7 km/h) |
| 60 mph (96.56 km/h) | 59.44 mph (95.67 km/h) |
| 65 mph (104.61 km/h) | 64.4 mph (103.64 km/h) |
| 70 mph (112.65 km/h) | 69.35 mph (111.61 km/h) |
| 75 mph (120.7 km/h) | 74.31 mph (119.58 km/h) |
| 80 mph (128.75 km/h) | 79.26 mph (127.56 km/h) |
| 85 mph (136.79 km/h) | 84.21 mph (135.53 km/h) |
| 90 mph (144.84 km/h) | 89.17 mph (143.5 km/h) |
| 95 mph (152.89 km/h) | 94.12 mph (151.47 km/h) |
| 100 mph (160.93 km/h) | 99.07 mph (159.45 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1873 | 2176 | 2343 | 2447 | 2558 | 2638 | 2725 | 2829 | 2973 | 3116 | 3275 | 3403 | 3634 | 3889 | 4088 | 4216 | 4287 | 4550 | 4917 | 5714 |
Better Fuel Economy Factory Ratios Increased Power
