Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 325/30-19 | 325/25-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.68 (677.6) | 25.4 (645.1) | -1.28 (-32.5) -4.8% |
| Width inches (mm) | 12.8 (325) | 12.8 (325) | 0 (0) 0% |
| Circum. inches (mm) | 83.81 (2128.74) | 79.79 (2026.64) | -4.02 (-102.1) -4.8% |
| Sidewall Height inches (mm) | 3.84 (97.5) | 3.2 (81.25) | -0.64 (-16.25) -16.7% |
| Revolutions per mile (km) | 756.01 (469.76) | 794.09 (493.43) | 38.09 (23.67) 5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.04 mph (30.64 km/h) |
| 25 mph (40.23 km/h) | 23.8 mph (38.3 km/h) |
| 30 mph (48.28 km/h) | 28.56 mph (45.96 km/h) |
| 35 mph (56.33 km/h) | 33.32 mph (53.63 km/h) |
| 40 mph (64.37 km/h) | 38.08 mph (61.29 km/h) |
| 45 mph (72.42 km/h) | 42.84 mph (68.95 km/h) |
| 50 mph (80.47 km/h) | 47.6 mph (76.61 km/h) |
| 55 mph (88.51 km/h) | 52.36 mph (84.27 km/h) |
| 60 mph (96.56 km/h) | 57.12 mph (91.93 km/h) |
| 65 mph (104.61 km/h) | 61.88 mph (99.59 km/h) |
| 70 mph (112.65 km/h) | 66.64 mph (107.25 km/h) |
| 75 mph (120.7 km/h) | 71.4 mph (114.91 km/h) |
| 80 mph (128.75 km/h) | 76.16 mph (122.57 km/h) |
| 85 mph (136.79 km/h) | 80.92 mph (130.23 km/h) |
| 90 mph (144.84 km/h) | 85.68 mph (137.89 km/h) |
| 95 mph (152.89 km/h) | 90.44 mph (145.55 km/h) |
| 100 mph (160.93 km/h) | 95.2 mph (153.22 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | 2348 | 2528 | 2640 | 2760 | 2846 | 2941 | 3053 | 3208 | 3362 | 3534 | 3672 | 3921 | 4196 | 4411 | 4549 | 4626 | 4910 | 5306 | 6166 |
Better Fuel Economy Factory Ratios Increased Power
