Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 345/30-19 | 375/30-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.15 (689.6) | 27.86 (707.6) | 0.71 (18) 2.6% |
| Width inches (mm) | 13.58 (345) | 14.76 (375) | 1.18 (30) 8.7% |
| Circum. inches (mm) | 85.29 (2166.44) | 87.52 (2222.99) | 2.23 (56.55) 2.6% |
| Sidewall Height inches (mm) | 4.07 (103.5) | 4.43 (112.5) | 0.35 (9) 8.7% |
| Revolutions per mile (km) | 742.85 (461.59) | 723.95 (449.84) | -18.9 (-11.74) -2.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.52 mph (33.03 km/h) |
| 25 mph (40.23 km/h) | 25.65 mph (41.28 km/h) |
| 30 mph (48.28 km/h) | 30.78 mph (49.54 km/h) |
| 35 mph (56.33 km/h) | 35.91 mph (57.8 km/h) |
| 40 mph (64.37 km/h) | 41.04 mph (66.05 km/h) |
| 45 mph (72.42 km/h) | 46.17 mph (74.31 km/h) |
| 50 mph (80.47 km/h) | 51.31 mph (82.57 km/h) |
| 55 mph (88.51 km/h) | 56.44 mph (90.82 km/h) |
| 60 mph (96.56 km/h) | 61.57 mph (99.08 km/h) |
| 65 mph (104.61 km/h) | 66.7 mph (107.34 km/h) |
| 70 mph (112.65 km/h) | 71.83 mph (115.59 km/h) |
| 75 mph (120.7 km/h) | 76.96 mph (123.85 km/h) |
| 80 mph (128.75 km/h) | 82.09 mph (132.11 km/h) |
| 85 mph (136.79 km/h) | 87.22 mph (140.37 km/h) |
| 90 mph (144.84 km/h) | 92.35 mph (148.62 km/h) |
| 95 mph (152.89 km/h) | 97.48 mph (156.88 km/h) |
| 100 mph (160.93 km/h) | 102.61 mph (165.14 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1842 | 2140 | 2305 | 2407 | 2517 | 2595 | 2681 | 2783 | 2924 | 3065 | 3222 | 3348 | 3575 | 3826 | 4022 | 4147 | 4218 | 4476 | 4837 | 5621 |
Better Fuel Economy Factory Ratios Increased Power
