Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 395/85-20 | 355/85-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 46.44 (1179.5) | 43.76 (1111.5) | -2.68 (-68) -5.8% |
| Width inches (mm) | 15.55 (395) | 13.98 (355) | -1.57 (-40) -10.1% |
| Circum. inches (mm) | 145.89 (3705.51) | 137.48 (3491.88) | -8.41 (-213.63) -5.8% |
| Sidewall Height inches (mm) | 13.22 (335.75) | 11.88 (301.75) | -1.34 (-34) -10.1% |
| Revolutions per mile (km) | 434.31 (269.87) | 460.88 (286.38) | 26.57 (16.51) 6.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.85 mph (30.33 km/h) |
| 25 mph (40.23 km/h) | 23.56 mph (37.91 km/h) |
| 30 mph (48.28 km/h) | 28.27 mph (45.5 km/h) |
| 35 mph (56.33 km/h) | 32.98 mph (53.08 km/h) |
| 40 mph (64.37 km/h) | 37.69 mph (60.66 km/h) |
| 45 mph (72.42 km/h) | 42.41 mph (68.25 km/h) |
| 50 mph (80.47 km/h) | 47.12 mph (75.83 km/h) |
| 55 mph (88.51 km/h) | 51.83 mph (83.41 km/h) |
| 60 mph (96.56 km/h) | 56.54 mph (90.99 km/h) |
| 65 mph (104.61 km/h) | 61.25 mph (98.58 km/h) |
| 70 mph (112.65 km/h) | 65.96 mph (106.16 km/h) |
| 75 mph (120.7 km/h) | 70.68 mph (113.74 km/h) |
| 80 mph (128.75 km/h) | 75.39 mph (121.33 km/h) |
| 85 mph (136.79 km/h) | 80.1 mph (128.91 km/h) |
| 90 mph (144.84 km/h) | 84.81 mph (136.49 km/h) |
| 95 mph (152.89 km/h) | 89.52 mph (144.07 km/h) |
| 100 mph (160.93 km/h) | 94.23 mph (151.66 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1173 | 1363 | 1467 | 1532 | 1602 | 1652 | 1707 | 1772 | 1862 | 1951 | 2051 | 2131 | 2276 | 2436 | 2560 | 2640 | 2685 | 2850 | 3079 | 3578 |
Better Fuel Economy Factory Ratios Increased Power
