Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 395/85-20 | 395/60-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 46.44 (1179.5) | 38.66 (982) | -7.78 (-197.5) -16.7% |
| Width inches (mm) | 15.55 (395) | 15.55 (395) | 0 (0) 0% |
| Circum. inches (mm) | 145.89 (3705.51) | 121.46 (3085.04) | -24.43 (-620.46) -16.7% |
| Sidewall Height inches (mm) | 13.22 (335.75) | 9.33 (237) | -3.89 (-98.75) -29.4% |
| Revolutions per mile (km) | 434.31 (269.87) | 521.66 (324.14) | 87.35 (54.28) 20.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 16.65 mph (26.8 km/h) |
| 25 mph (40.23 km/h) | 20.81 mph (33.5 km/h) |
| 30 mph (48.28 km/h) | 24.98 mph (40.2 km/h) |
| 35 mph (56.33 km/h) | 29.14 mph (46.9 km/h) |
| 40 mph (64.37 km/h) | 33.3 mph (53.59 km/h) |
| 45 mph (72.42 km/h) | 37.47 mph (60.29 km/h) |
| 50 mph (80.47 km/h) | 41.63 mph (66.99 km/h) |
| 55 mph (88.51 km/h) | 45.79 mph (73.69 km/h) |
| 60 mph (96.56 km/h) | 49.95 mph (80.39 km/h) |
| 65 mph (104.61 km/h) | 54.12 mph (87.09 km/h) |
| 70 mph (112.65 km/h) | 58.28 mph (93.79 km/h) |
| 75 mph (120.7 km/h) | 62.44 mph (100.49 km/h) |
| 80 mph (128.75 km/h) | 66.6 mph (107.19 km/h) |
| 85 mph (136.79 km/h) | 70.77 mph (113.89 km/h) |
| 90 mph (144.84 km/h) | 74.93 mph (120.59 km/h) |
| 95 mph (152.89 km/h) | 79.09 mph (127.29 km/h) |
| 100 mph (160.93 km/h) | 83.26 mph (133.99 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
