Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/25-19 | 245/25-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.2 (640.1) | 22.82 (579.7) | -2.38 (-60.4) -9.4% |
| Width inches (mm) | 12.4 (315) | 9.65 (245) | -2.76 (-70) -22.2% |
| Circum. inches (mm) | 79.17 (2010.93) | 71.7 (1821.18) | -7.47 (-189.75) -9.4% |
| Sidewall Height inches (mm) | 3.1 (78.75) | 2.41 (61.25) | -0.69 (-17.5) -22.2% |
| Revolutions per mile (km) | 800.3 (497.28) | 883.68 (549.09) | 83.38 (51.81) 10.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.11 mph (29.15 km/h) |
| 25 mph (40.23 km/h) | 22.64 mph (36.44 km/h) |
| 30 mph (48.28 km/h) | 27.17 mph (43.72 km/h) |
| 35 mph (56.33 km/h) | 31.7 mph (51.01 km/h) |
| 40 mph (64.37 km/h) | 36.23 mph (58.3 km/h) |
| 45 mph (72.42 km/h) | 40.75 mph (65.59 km/h) |
| 50 mph (80.47 km/h) | 45.28 mph (72.87 km/h) |
| 55 mph (88.51 km/h) | 49.81 mph (80.16 km/h) |
| 60 mph (96.56 km/h) | 54.34 mph (87.45 km/h) |
| 65 mph (104.61 km/h) | 58.87 mph (94.74 km/h) |
| 70 mph (112.65 km/h) | 63.39 mph (102.02 km/h) |
| 75 mph (120.7 km/h) | 67.92 mph (109.31 km/h) |
| 80 mph (128.75 km/h) | 72.45 mph (116.6 km/h) |
| 85 mph (136.79 km/h) | 76.98 mph (123.89 km/h) |
| 90 mph (144.84 km/h) | 81.51 mph (131.17 km/h) |
| 95 mph (152.89 km/h) | 86.04 mph (138.46 km/h) |
| 100 mph (160.93 km/h) | 90.56 mph (145.75 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2249 | 2612 | 2813 | 2938 | 3072 | 3167 | 3273 | 3397 | 3569 | 3742 | 3933 | 4086 | 4364 | 4670 | 4909 | 5062 | 5148 | 5464 | 5904 | 6861 |
Better Fuel Economy Factory Ratios Increased Power
