Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 365/80-20 | 325/60-22.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 42.99 (1092) | 37.85 (961.5) | -5.14 (-130.5) -12% |
| Width inches (mm) | 14.37 (365) | 12.8 (325) | -1.57 (-40) -11% |
| Circum. inches (mm) | 135.06 (3430.62) | 118.92 (3020.64) | -16.14 (-409.98) -12% |
| Sidewall Height inches (mm) | 11.5 (292) | 7.68 (195) | -3.82 (-97) -33.2% |
| Revolutions per mile (km) | 469.11 (291.49) | 532.78 (331.05) | 63.67 (39.56) 13.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.61 mph (28.34 km/h) |
| 25 mph (40.23 km/h) | 22.01 mph (35.43 km/h) |
| 30 mph (48.28 km/h) | 26.41 mph (42.51 km/h) |
| 35 mph (56.33 km/h) | 30.82 mph (49.6 km/h) |
| 40 mph (64.37 km/h) | 35.22 mph (56.68 km/h) |
| 45 mph (72.42 km/h) | 39.62 mph (63.77 km/h) |
| 50 mph (80.47 km/h) | 44.02 mph (70.85 km/h) |
| 55 mph (88.51 km/h) | 48.43 mph (77.94 km/h) |
| 60 mph (96.56 km/h) | 52.83 mph (85.02 km/h) |
| 65 mph (104.61 km/h) | 57.23 mph (92.11 km/h) |
| 70 mph (112.65 km/h) | 61.63 mph (99.19 km/h) |
| 75 mph (120.7 km/h) | 66.04 mph (106.28 km/h) |
| 80 mph (128.75 km/h) | 70.44 mph (113.36 km/h) |
| 85 mph (136.79 km/h) | 74.84 mph (120.45 km/h) |
| 90 mph (144.84 km/h) | 79.24 mph (127.53 km/h) |
| 95 mph (152.89 km/h) | 83.65 mph (134.62 km/h) |
| 100 mph (160.93 km/h) | 88.05 mph (141.7 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1356 | 1575 | 1696 | 1771 | 1852 | 1910 | 1973 | 2048 | 2152 | 2256 | 2371 | 2464 | 2631 | 2816 | 2960 | 3052 | 3104 | 3294 | 3560 | 4137 |
Better Fuel Economy Factory Ratios Increased Power
