Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 325/25-20 | 395/35-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.4 (670.5) | 30.89 (784.5) | 4.49 (114) 17% |
| Width inches (mm) | 12.8 (325) | 15.55 (395) | 2.76 (70) 21.5% |
| Circum. inches (mm) | 82.93 (2106.44) | 97.03 (2464.58) | 14.1 (358.14) 17% |
| Sidewall Height inches (mm) | 3.2 (81.25) | 5.44 (138.25) | 2.24 (57) 70.2% |
| Revolutions per mile (km) | 764.01 (474.73) | 652.99 (405.75) | -111.02 (-68.99) -14.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.4 mph (37.66 km/h) |
| 25 mph (40.23 km/h) | 29.25 mph (47.07 km/h) |
| 30 mph (48.28 km/h) | 35.1 mph (56.49 km/h) |
| 35 mph (56.33 km/h) | 40.95 mph (65.9 km/h) |
| 40 mph (64.37 km/h) | 46.8 mph (75.32 km/h) |
| 45 mph (72.42 km/h) | 52.65 mph (84.73 km/h) |
| 50 mph (80.47 km/h) | 58.5 mph (94.15 km/h) |
| 55 mph (88.51 km/h) | 64.35 mph (103.56 km/h) |
| 60 mph (96.56 km/h) | 70.2 mph (112.98 km/h) |
| 65 mph (104.61 km/h) | 76.05 mph (122.39 km/h) |
| 70 mph (112.65 km/h) | 81.9 mph (131.81 km/h) |
| 75 mph (120.7 km/h) | 87.75 mph (141.22 km/h) |
| 80 mph (128.75 km/h) | 93.6 mph (150.64 km/h) |
| 85 mph (136.79 km/h) | 99.45 mph (160.05 km/h) |
| 90 mph (144.84 km/h) | 105.3 mph (169.47 km/h) |
| 95 mph (152.89 km/h) | 111.15 mph (178.88 km/h) |
| 100 mph (160.93 km/h) | 117 mph (188.3 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1662 | 1930 | 2079 | 2171 | 2270 | 2341 | 2418 | 2510 | 2638 | 2765 | 2906 | 3019 | 3224 | 3451 | 3628 | 3741 | 3804 | 4038 | 4363 | 5070 |
Better Fuel Economy Factory Ratios Increased Power
