Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/35-19 | 325/30-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.41 (696.1) | 26.68 (677.6) | -0.73 (-18.5) -2.7% |
| Width inches (mm) | 12.01 (305) | 12.8 (325) | 0.79 (20) 6.6% |
| Circum. inches (mm) | 86.1 (2186.86) | 83.81 (2128.74) | -2.29 (-58.12) -2.7% |
| Sidewall Height inches (mm) | 4.2 (106.75) | 3.84 (97.5) | -0.36 (-9.25) -8.7% |
| Revolutions per mile (km) | 735.91 (457.28) | 756.01 (469.76) | 20.09 (12.48) 2.7% |
325/30-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.47 mph (31.33 km/h) |
| 25 mph (40.23 km/h) | 24.34 mph (39.16 km/h) |
| 30 mph (48.28 km/h) | 29.2 mph (47 km/h) |
| 35 mph (56.33 km/h) | 34.07 mph (54.83 km/h) |
| 40 mph (64.37 km/h) | 38.94 mph (62.66 km/h) |
| 45 mph (72.42 km/h) | 43.8 mph (70.5 km/h) |
| 50 mph (80.47 km/h) | 48.67 mph (78.33 km/h) |
| 55 mph (88.51 km/h) | 53.54 mph (86.16 km/h) |
| 60 mph (96.56 km/h) | 58.41 mph (93.99 km/h) |
| 65 mph (104.61 km/h) | 63.27 mph (101.83 km/h) |
| 70 mph (112.65 km/h) | 68.14 mph (109.66 km/h) |
| 75 mph (120.7 km/h) | 73.01 mph (117.49 km/h) |
| 80 mph (128.75 km/h) | 77.87 mph (125.33 km/h) |
| 85 mph (136.79 km/h) | 82.74 mph (133.16 km/h) |
| 90 mph (144.84 km/h) | 87.61 mph (140.99 km/h) |
| 95 mph (152.89 km/h) | 92.48 mph (148.82 km/h) |
| 100 mph (160.93 km/h) | 97.34 mph (156.66 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1924 | 2235 | 2407 | 2513 | 2628 | 2710 | 2800 | 2906 | 3054 | 3201 | 3365 | 3496 | 3733 | 3995 | 4200 | 4331 | 4404 | 4675 | 5051 | 5870 |
Better Fuel Economy Factory Ratios Increased Power
