Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/70-20 | 335/75-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.09 (739) | 39.78 (1010.5) | 10.69 (271.5) 36.7% |
| Width inches (mm) | 6.5 (165) | 13.19 (335) | 6.69 (170) 103% |
| Circum. inches (mm) | 91.4 (2321.64) | 124.98 (3174.58) | 33.58 (852.94) 36.7% |
| Sidewall Height inches (mm) | 4.55 (115.5) | 9.89 (251.25) | 5.34 (135.75) 117.5% |
| Revolutions per mile (km) | 693.19 (430.73) | 506.95 (315) | -186.25 (-115.73) -26.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 27.35 mph (44.01 km/h) |
| 25 mph (40.23 km/h) | 34.18 mph (55.02 km/h) |
| 30 mph (48.28 km/h) | 41.02 mph (66.02 km/h) |
| 35 mph (56.33 km/h) | 47.86 mph (77.02 km/h) |
| 40 mph (64.37 km/h) | 54.7 mph (88.02 km/h) |
| 45 mph (72.42 km/h) | 61.53 mph (99.03 km/h) |
| 50 mph (80.47 km/h) | 68.37 mph (110.03 km/h) |
| 55 mph (88.51 km/h) | 75.21 mph (121.03 km/h) |
| 60 mph (96.56 km/h) | 82.04 mph (132.04 km/h) |
| 65 mph (104.61 km/h) | 88.88 mph (143.04 km/h) |
| 70 mph (112.65 km/h) | 95.72 mph (154.04 km/h) |
| 75 mph (120.7 km/h) | 102.55 mph (165.05 km/h) |
| 80 mph (128.75 km/h) | 109.39 mph (176.05 km/h) |
| 85 mph (136.79 km/h) | 116.23 mph (187.05 km/h) |
| 90 mph (144.84 km/h) | 123.06 mph (198.05 km/h) |
| 95 mph (152.89 km/h) | 129.9 mph (209.06 km/h) |
| 100 mph (160.93 km/h) | 136.74 mph (220.06 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1290 | 1499 | 1614 | 1685 | 1762 | 1817 | 1877 | 1949 | 2048 | 2146 | 2256 | 2344 | 2503 | 2679 | 2816 | 2904 | 2953 | 3135 | 3387 | 3936 |
Better Fuel Economy Factory Ratios Increased Power
