Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 395/85-20 | 350/90-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 46.44 (1179.5) | 44.8 (1138) | -1.63 (-41.5) -3.5% |
| Width inches (mm) | 15.55 (395) | 13.78 (350) | -1.77 (-45) -11.4% |
| Circum. inches (mm) | 145.89 (3705.51) | 140.75 (3575.13) | -5.13 (-130.38) -3.5% |
| Sidewall Height inches (mm) | 13.22 (335.75) | 12.4 (315) | -0.82 (-20.75) -6.2% |
| Revolutions per mile (km) | 434.31 (269.87) | 450.15 (279.71) | 15.84 (9.84) 3.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.3 mph (31.05 km/h) |
| 25 mph (40.23 km/h) | 24.12 mph (38.82 km/h) |
| 30 mph (48.28 km/h) | 28.94 mph (46.58 km/h) |
| 35 mph (56.33 km/h) | 33.77 mph (54.35 km/h) |
| 40 mph (64.37 km/h) | 38.59 mph (62.11 km/h) |
| 45 mph (72.42 km/h) | 43.42 mph (69.87 km/h) |
| 50 mph (80.47 km/h) | 48.24 mph (77.64 km/h) |
| 55 mph (88.51 km/h) | 53.06 mph (85.4 km/h) |
| 60 mph (96.56 km/h) | 57.89 mph (93.16 km/h) |
| 65 mph (104.61 km/h) | 62.71 mph (100.93 km/h) |
| 70 mph (112.65 km/h) | 67.54 mph (108.69 km/h) |
| 75 mph (120.7 km/h) | 72.36 mph (116.45 km/h) |
| 80 mph (128.75 km/h) | 77.19 mph (124.22 km/h) |
| 85 mph (136.79 km/h) | 82.01 mph (131.98 km/h) |
| 90 mph (144.84 km/h) | 86.83 mph (139.75 km/h) |
| 95 mph (152.89 km/h) | 91.66 mph (147.51 km/h) |
| 100 mph (160.93 km/h) | 96.48 mph (155.27 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
