Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 335/30-20 | 325/25-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.91 (709) | 26.4 (670.5) | -1.52 (-38.5) -5.4% |
| Width inches (mm) | 13.19 (335) | 12.8 (325) | -0.39 (-10) -3% |
| Circum. inches (mm) | 87.69 (2227.39) | 82.93 (2106.44) | -4.76 (-120.95) -5.4% |
| Sidewall Height inches (mm) | 3.96 (100.5) | 3.2 (81.25) | -0.76 (-19.25) -19.2% |
| Revolutions per mile (km) | 722.52 (448.96) | 764.01 (474.73) | 41.49 (25.78) 5.7% |
325/25-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.91 mph (30.44 km/h) |
| 25 mph (40.23 km/h) | 23.64 mph (38.05 km/h) |
| 30 mph (48.28 km/h) | 28.37 mph (45.66 km/h) |
| 35 mph (56.33 km/h) | 33.1 mph (53.27 km/h) |
| 40 mph (64.37 km/h) | 37.83 mph (60.88 km/h) |
| 45 mph (72.42 km/h) | 42.56 mph (68.49 km/h) |
| 50 mph (80.47 km/h) | 47.28 mph (76.1 km/h) |
| 55 mph (88.51 km/h) | 52.01 mph (83.71 km/h) |
| 60 mph (96.56 km/h) | 56.74 mph (91.32 km/h) |
| 65 mph (104.61 km/h) | 61.47 mph (98.93 km/h) |
| 70 mph (112.65 km/h) | 66.2 mph (106.54 km/h) |
| 75 mph (120.7 km/h) | 70.93 mph (114.15 km/h) |
| 80 mph (128.75 km/h) | 75.66 mph (121.76 km/h) |
| 85 mph (136.79 km/h) | 80.38 mph (129.37 km/h) |
| 90 mph (144.84 km/h) | 85.11 mph (136.98 km/h) |
| 95 mph (152.89 km/h) | 89.84 mph (144.59 km/h) |
| 100 mph (160.93 km/h) | 94.57 mph (152.2 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1944 | 2259 | 2432 | 2540 | 2656 | 2739 | 2830 | 2937 | 3086 | 3235 | 3400 | 3533 | 3773 | 4037 | 4244 | 4377 | 4451 | 4724 | 5105 | 5932 |
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