Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/25-19 | 305/55-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.2 (640.1) | 32.21 (818.1) | 7.01 (178) 27.8% |
| Width inches (mm) | 12.4 (315) | 12.01 (305) | -0.39 (-10) -3.2% |
| Circum. inches (mm) | 79.17 (2010.93) | 101.19 (2570.14) | 22.02 (559.2) 27.8% |
| Sidewall Height inches (mm) | 3.1 (78.75) | 6.6 (167.75) | 3.5 (89) 113% |
| Revolutions per mile (km) | 800.3 (497.28) | 626.17 (389.08) | -174.13 (-108.2) -21.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 25.56 mph (41.14 km/h) |
| 25 mph (40.23 km/h) | 31.95 mph (51.42 km/h) |
| 30 mph (48.28 km/h) | 38.34 mph (61.71 km/h) |
| 35 mph (56.33 km/h) | 44.73 mph (71.99 km/h) |
| 40 mph (64.37 km/h) | 51.12 mph (82.28 km/h) |
| 45 mph (72.42 km/h) | 57.51 mph (92.56 km/h) |
| 50 mph (80.47 km/h) | 63.9 mph (102.84 km/h) |
| 55 mph (88.51 km/h) | 70.29 mph (113.13 km/h) |
| 60 mph (96.56 km/h) | 76.68 mph (123.41 km/h) |
| 65 mph (104.61 km/h) | 83.08 mph (133.7 km/h) |
| 70 mph (112.65 km/h) | 89.47 mph (143.98 km/h) |
| 75 mph (120.7 km/h) | 95.86 mph (154.27 km/h) |
| 80 mph (128.75 km/h) | 102.25 mph (164.55 km/h) |
| 85 mph (136.79 km/h) | 108.64 mph (174.83 km/h) |
| 90 mph (144.84 km/h) | 115.03 mph (185.12 km/h) |
| 95 mph (152.89 km/h) | 121.42 mph (195.4 km/h) |
| 100 mph (160.93 km/h) | 127.81 mph (205.69 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1593 | 1851 | 1994 | 2082 | 2177 | 2244 | 2319 | 2407 | 2529 | 2651 | 2787 | 2895 | 3092 | 3309 | 3479 | 3587 | 3648 | 3872 | 4184 | 4862 |
Better Fuel Economy Factory Ratios Increased Power
