Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 355/25-21 | 335/30-21 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.99 (710.9) | 28.91 (734.4) | 0.93 (23.5) 3.3% |
| Width inches (mm) | 13.98 (355) | 13.19 (335) | -0.79 (-20) -5.6% |
| Circum. inches (mm) | 87.93 (2233.36) | 90.83 (2307.19) | 2.91 (73.83) 3.3% |
| Sidewall Height inches (mm) | 3.49 (88.75) | 3.96 (100.5) | 0.46 (11.75) 13.2% |
| Revolutions per mile (km) | 720.59 (447.76) | 697.54 (433.43) | -23.06 (-14.33) -3.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.66 mph (33.25 km/h) |
| 25 mph (40.23 km/h) | 25.83 mph (41.56 km/h) |
| 30 mph (48.28 km/h) | 30.99 mph (49.88 km/h) |
| 35 mph (56.33 km/h) | 36.16 mph (58.19 km/h) |
| 40 mph (64.37 km/h) | 41.32 mph (66.5 km/h) |
| 45 mph (72.42 km/h) | 46.49 mph (74.81 km/h) |
| 50 mph (80.47 km/h) | 51.65 mph (83.13 km/h) |
| 55 mph (88.51 km/h) | 56.82 mph (91.44 km/h) |
| 60 mph (96.56 km/h) | 61.98 mph (99.75 km/h) |
| 65 mph (104.61 km/h) | 67.15 mph (108.07 km/h) |
| 70 mph (112.65 km/h) | 72.31 mph (116.38 km/h) |
| 75 mph (120.7 km/h) | 77.48 mph (124.69 km/h) |
| 80 mph (128.75 km/h) | 82.64 mph (133 km/h) |
| 85 mph (136.79 km/h) | 87.81 mph (141.32 km/h) |
| 90 mph (144.84 km/h) | 92.98 mph (149.63 km/h) |
| 95 mph (152.89 km/h) | 98.14 mph (157.94 km/h) |
| 100 mph (160.93 km/h) | 103.31 mph (166.25 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1775 | 2062 | 2221 | 2319 | 2425 | 2500 | 2583 | 2682 | 2817 | 2953 | 3105 | 3225 | 3444 | 3686 | 3875 | 3996 | 4064 | 4313 | 4661 | 5416 |
Better Fuel Economy Factory Ratios Increased Power
