Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 355/25-21 | 335/75-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.99 (710.9) | 39.78 (1010.5) | 11.8 (299.6) 42.1% |
| Width inches (mm) | 13.98 (355) | 13.19 (335) | -0.79 (-20) -5.6% |
| Circum. inches (mm) | 87.93 (2233.36) | 124.98 (3174.58) | 37.06 (941.22) 42.1% |
| Sidewall Height inches (mm) | 3.49 (88.75) | 9.89 (251.25) | 6.4 (162.5) 183.1% |
| Revolutions per mile (km) | 720.59 (447.76) | 506.95 (315) | -213.65 (-132.75) -29.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 28.43 mph (45.75 km/h) |
| 25 mph (40.23 km/h) | 35.54 mph (57.19 km/h) |
| 30 mph (48.28 km/h) | 42.64 mph (68.63 km/h) |
| 35 mph (56.33 km/h) | 49.75 mph (80.07 km/h) |
| 40 mph (64.37 km/h) | 56.86 mph (91.5 km/h) |
| 45 mph (72.42 km/h) | 63.96 mph (102.94 km/h) |
| 50 mph (80.47 km/h) | 71.07 mph (114.38 km/h) |
| 55 mph (88.51 km/h) | 78.18 mph (125.82 km/h) |
| 60 mph (96.56 km/h) | 85.29 mph (137.26 km/h) |
| 65 mph (104.61 km/h) | 92.39 mph (148.69 km/h) |
| 70 mph (112.65 km/h) | 99.5 mph (160.13 km/h) |
| 75 mph (120.7 km/h) | 106.61 mph (171.57 km/h) |
| 80 mph (128.75 km/h) | 113.72 mph (183.01 km/h) |
| 85 mph (136.79 km/h) | 120.82 mph (194.44 km/h) |
| 90 mph (144.84 km/h) | 127.93 mph (205.88 km/h) |
| 95 mph (152.89 km/h) | 135.04 mph (217.32 km/h) |
| 100 mph (160.93 km/h) | 142.14 mph (228.76 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
