Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 365/80-20 | 395/85-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 42.99 (1092) | 46.44 (1179.5) | 3.44 (87.5) 8% |
| Width inches (mm) | 14.37 (365) | 15.55 (395) | 1.18 (30) 8.2% |
| Circum. inches (mm) | 135.06 (3430.62) | 145.89 (3705.51) | 10.82 (274.89) 8% |
| Sidewall Height inches (mm) | 11.5 (292) | 13.22 (335.75) | 1.72 (43.75) 15% |
| Revolutions per mile (km) | 469.11 (291.49) | 434.31 (269.87) | -34.8 (-21.62) -7.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.6 mph (34.77 km/h) |
| 25 mph (40.23 km/h) | 27 mph (43.46 km/h) |
| 30 mph (48.28 km/h) | 32.4 mph (52.15 km/h) |
| 35 mph (56.33 km/h) | 37.8 mph (60.84 km/h) |
| 40 mph (64.37 km/h) | 43.21 mph (69.53 km/h) |
| 45 mph (72.42 km/h) | 48.61 mph (78.22 km/h) |
| 50 mph (80.47 km/h) | 54.01 mph (86.92 km/h) |
| 55 mph (88.51 km/h) | 59.41 mph (95.61 km/h) |
| 60 mph (96.56 km/h) | 64.81 mph (104.3 km/h) |
| 65 mph (104.61 km/h) | 70.21 mph (112.99 km/h) |
| 70 mph (112.65 km/h) | 75.61 mph (121.68 km/h) |
| 75 mph (120.7 km/h) | 81.01 mph (130.37 km/h) |
| 80 mph (128.75 km/h) | 86.41 mph (139.06 km/h) |
| 85 mph (136.79 km/h) | 91.81 mph (147.76 km/h) |
| 90 mph (144.84 km/h) | 97.21 mph (156.45 km/h) |
| 95 mph (152.89 km/h) | 102.61 mph (165.14 km/h) |
| 100 mph (160.93 km/h) | 108.01 mph (173.83 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
