Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 325/25-20 | 235/20-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.4 (670.5) | 23.7 (602) | -2.7 (-68.5) -10.2% |
| Width inches (mm) | 12.8 (325) | 9.25 (235) | -3.54 (-90) -27.7% |
| Circum. inches (mm) | 82.93 (2106.44) | 74.46 (1891.24) | -8.47 (-215.2) -10.2% |
| Sidewall Height inches (mm) | 3.2 (81.25) | 1.85 (47) | -1.35 (-34.25) -42.2% |
| Revolutions per mile (km) | 764.01 (474.73) | 850.95 (528.75) | 86.93 (54.02) 11.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.96 mph (28.9 km/h) |
| 25 mph (40.23 km/h) | 22.45 mph (36.12 km/h) |
| 30 mph (48.28 km/h) | 26.94 mph (43.35 km/h) |
| 35 mph (56.33 km/h) | 31.42 mph (50.57 km/h) |
| 40 mph (64.37 km/h) | 35.91 mph (57.8 km/h) |
| 45 mph (72.42 km/h) | 40.4 mph (65.02 km/h) |
| 50 mph (80.47 km/h) | 44.89 mph (72.25 km/h) |
| 55 mph (88.51 km/h) | 49.38 mph (79.47 km/h) |
| 60 mph (96.56 km/h) | 53.87 mph (86.7 km/h) |
| 65 mph (104.61 km/h) | 58.36 mph (93.92 km/h) |
| 70 mph (112.65 km/h) | 62.85 mph (101.15 km/h) |
| 75 mph (120.7 km/h) | 67.34 mph (108.37 km/h) |
| 80 mph (128.75 km/h) | 71.83 mph (115.59 km/h) |
| 85 mph (136.79 km/h) | 76.32 mph (122.82 km/h) |
| 90 mph (144.84 km/h) | 80.81 mph (130.04 km/h) |
| 95 mph (152.89 km/h) | 85.29 mph (137.27 km/h) |
| 100 mph (160.93 km/h) | 89.78 mph (144.49 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2165 | 2516 | 2709 | 2829 | 2958 | 3050 | 3151 | 3271 | 3437 | 3603 | 3787 | 3935 | 4202 | 4497 | 4727 | 4875 | 4958 | 5262 | 5686 | 6607 |
Better Fuel Economy Factory Ratios Increased Power
