Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 365/80-20 | 395/60-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 42.99 (1092) | 38.66 (982) | -4.33 (-110) -10.1% |
| Width inches (mm) | 14.37 (365) | 15.55 (395) | 1.18 (30) 8.2% |
| Circum. inches (mm) | 135.06 (3430.62) | 121.46 (3085.04) | -13.61 (-345.58) -10.1% |
| Sidewall Height inches (mm) | 11.5 (292) | 9.33 (237) | -2.17 (-55) -18.8% |
| Revolutions per mile (km) | 469.11 (291.49) | 521.66 (324.14) | 52.55 (32.65) 11.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.99 mph (28.94 km/h) |
| 25 mph (40.23 km/h) | 22.48 mph (36.18 km/h) |
| 30 mph (48.28 km/h) | 26.98 mph (43.42 km/h) |
| 35 mph (56.33 km/h) | 31.47 mph (50.65 km/h) |
| 40 mph (64.37 km/h) | 35.97 mph (57.89 km/h) |
| 45 mph (72.42 km/h) | 40.47 mph (65.13 km/h) |
| 50 mph (80.47 km/h) | 44.96 mph (72.36 km/h) |
| 55 mph (88.51 km/h) | 49.46 mph (79.6 km/h) |
| 60 mph (96.56 km/h) | 53.96 mph (86.83 km/h) |
| 65 mph (104.61 km/h) | 58.45 mph (94.07 km/h) |
| 70 mph (112.65 km/h) | 62.95 mph (101.31 km/h) |
| 75 mph (120.7 km/h) | 67.45 mph (108.54 km/h) |
| 80 mph (128.75 km/h) | 71.94 mph (115.78 km/h) |
| 85 mph (136.79 km/h) | 76.44 mph (123.01 km/h) |
| 90 mph (144.84 km/h) | 80.93 mph (130.25 km/h) |
| 95 mph (152.89 km/h) | 85.43 mph (137.49 km/h) |
| 100 mph (160.93 km/h) | 89.93 mph (144.72 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1328 | 1542 | 1661 | 1734 | 1813 | 1870 | 1932 | 2005 | 2107 | 2209 | 2322 | 2412 | 2576 | 2757 | 2898 | 2988 | 3039 | 3226 | 3485 | 4050 |
Better Fuel Economy Factory Ratios Increased Power
