Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/40-19 | 325/35-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.92 (734.6) | 27.96 (710.1) | -0.96 (-24.5) -3.3% |
| Width inches (mm) | 12.4 (315) | 12.8 (325) | 0.39 (10) 3.2% |
| Circum. inches (mm) | 90.86 (2307.81) | 87.83 (2230.84) | -3.03 (-76.97) -3.3% |
| Sidewall Height inches (mm) | 4.96 (126) | 4.48 (113.75) | -0.48 (-12.25) -9.7% |
| Revolutions per mile (km) | 697.35 (433.31) | 721.41 (448.26) | 24.06 (14.95) 3.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.33 mph (31.11 km/h) |
| 25 mph (40.23 km/h) | 24.17 mph (38.89 km/h) |
| 30 mph (48.28 km/h) | 29 mph (46.67 km/h) |
| 35 mph (56.33 km/h) | 33.83 mph (54.45 km/h) |
| 40 mph (64.37 km/h) | 38.67 mph (62.23 km/h) |
| 45 mph (72.42 km/h) | 43.5 mph (70.01 km/h) |
| 50 mph (80.47 km/h) | 48.33 mph (77.78 km/h) |
| 55 mph (88.51 km/h) | 53.17 mph (85.56 km/h) |
| 60 mph (96.56 km/h) | 58 mph (93.34 km/h) |
| 65 mph (104.61 km/h) | 62.83 mph (101.12 km/h) |
| 70 mph (112.65 km/h) | 67.67 mph (108.9 km/h) |
| 75 mph (120.7 km/h) | 72.5 mph (116.68 km/h) |
| 80 mph (128.75 km/h) | 77.33 mph (124.45 km/h) |
| 85 mph (136.79 km/h) | 82.17 mph (132.23 km/h) |
| 90 mph (144.84 km/h) | 87 mph (140.01 km/h) |
| 95 mph (152.89 km/h) | 91.83 mph (147.79 km/h) |
| 100 mph (160.93 km/h) | 96.66 mph (155.57 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1836 | 2133 | 2297 | 2398 | 2508 | 2586 | 2672 | 2773 | 2914 | 3055 | 3211 | 3336 | 3562 | 3812 | 4008 | 4133 | 4203 | 4461 | 4820 | 5601 |
Better Fuel Economy Factory Ratios Increased Power
