Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/40-19 | 315/40-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.92 (734.6) | 26.92 (683.8) | -2 (-50.8) -6.9% |
| Width inches (mm) | 12.4 (315) | 12.4 (315) | 0 (0) 0% |
| Circum. inches (mm) | 90.86 (2307.81) | 84.58 (2148.22) | -6.28 (-159.59) -6.9% |
| Sidewall Height inches (mm) | 4.96 (126) | 4.96 (126) | 0 (0) 0% |
| Revolutions per mile (km) | 697.35 (433.31) | 749.15 (465.5) | 51.81 (32.19) 7.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.62 mph (29.96 km/h) |
| 25 mph (40.23 km/h) | 23.27 mph (37.45 km/h) |
| 30 mph (48.28 km/h) | 27.93 mph (44.94 km/h) |
| 35 mph (56.33 km/h) | 32.58 mph (52.43 km/h) |
| 40 mph (64.37 km/h) | 37.23 mph (59.92 km/h) |
| 45 mph (72.42 km/h) | 41.89 mph (67.41 km/h) |
| 50 mph (80.47 km/h) | 46.54 mph (74.9 km/h) |
| 55 mph (88.51 km/h) | 51.2 mph (82.39 km/h) |
| 60 mph (96.56 km/h) | 55.85 mph (89.88 km/h) |
| 65 mph (104.61 km/h) | 60.51 mph (97.37 km/h) |
| 70 mph (112.65 km/h) | 65.16 mph (104.86 km/h) |
| 75 mph (120.7 km/h) | 69.81 mph (112.35 km/h) |
| 80 mph (128.75 km/h) | 74.47 mph (119.84 km/h) |
| 85 mph (136.79 km/h) | 79.12 mph (127.33 km/h) |
| 90 mph (144.84 km/h) | 83.78 mph (134.82 km/h) |
| 95 mph (152.89 km/h) | 88.43 mph (142.32 km/h) |
| 100 mph (160.93 km/h) | 93.08 mph (149.81 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1906 | 2215 | 2385 | 2491 | 2604 | 2685 | 2774 | 2880 | 3026 | 3172 | 3334 | 3464 | 3699 | 3959 | 4162 | 4292 | 4365 | 4632 | 5005 | 5817 |
Better Fuel Economy Factory Ratios Increased Power
