Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 325/30-19 | 305/35-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.68 (677.6) | 27.41 (696.1) | 0.73 (18.5) 2.7% |
| Width inches (mm) | 12.8 (325) | 12.01 (305) | -0.79 (-20) -6.2% |
| Circum. inches (mm) | 83.81 (2128.74) | 86.1 (2186.86) | 2.29 (58.12) 2.7% |
| Sidewall Height inches (mm) | 3.84 (97.5) | 4.2 (106.75) | 0.36 (9.25) 9.5% |
| Revolutions per mile (km) | 756.01 (469.76) | 735.91 (457.28) | -20.09 (-12.48) -2.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.55 mph (33.07 km/h) |
| 25 mph (40.23 km/h) | 25.68 mph (41.33 km/h) |
| 30 mph (48.28 km/h) | 30.82 mph (49.6 km/h) |
| 35 mph (56.33 km/h) | 35.96 mph (57.87 km/h) |
| 40 mph (64.37 km/h) | 41.09 mph (66.13 km/h) |
| 45 mph (72.42 km/h) | 46.23 mph (74.4 km/h) |
| 50 mph (80.47 km/h) | 51.37 mph (82.66 km/h) |
| 55 mph (88.51 km/h) | 56.5 mph (90.93 km/h) |
| 60 mph (96.56 km/h) | 61.64 mph (99.2 km/h) |
| 65 mph (104.61 km/h) | 66.77 mph (107.46 km/h) |
| 70 mph (112.65 km/h) | 71.91 mph (115.73 km/h) |
| 75 mph (120.7 km/h) | 77.05 mph (124 km/h) |
| 80 mph (128.75 km/h) | 82.18 mph (132.26 km/h) |
| 85 mph (136.79 km/h) | 87.32 mph (140.53 km/h) |
| 90 mph (144.84 km/h) | 92.46 mph (148.8 km/h) |
| 95 mph (152.89 km/h) | 97.59 mph (157.06 km/h) |
| 100 mph (160.93 km/h) | 102.73 mph (165.33 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1873 | 2176 | 2343 | 2447 | 2558 | 2638 | 2725 | 2829 | 2973 | 3116 | 3275 | 3403 | 3634 | 3889 | 4088 | 4216 | 4287 | 4550 | 4917 | 5714 |
Better Fuel Economy Factory Ratios Increased Power
