Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 355/25-21 | 355/30-26 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.99 (710.9) | 34.39 (873.4) | 6.4 (162.5) 22.9% |
| Width inches (mm) | 13.98 (355) | 13.98 (355) | 0 (0) 0% |
| Circum. inches (mm) | 87.93 (2233.36) | 108.03 (2743.87) | 20.1 (510.51) 22.9% |
| Sidewall Height inches (mm) | 3.49 (88.75) | 4.19 (106.5) | 0.7 (17.75) 20% |
| Revolutions per mile (km) | 720.59 (447.76) | 586.52 (364.45) | -134.07 (-83.31) -18.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 24.57 mph (39.54 km/h) |
| 25 mph (40.23 km/h) | 30.71 mph (49.43 km/h) |
| 30 mph (48.28 km/h) | 36.86 mph (59.32 km/h) |
| 35 mph (56.33 km/h) | 43 mph (69.2 km/h) |
| 40 mph (64.37 km/h) | 49.14 mph (79.09 km/h) |
| 45 mph (72.42 km/h) | 55.29 mph (88.97 km/h) |
| 50 mph (80.47 km/h) | 61.43 mph (98.86 km/h) |
| 55 mph (88.51 km/h) | 67.57 mph (108.75 km/h) |
| 60 mph (96.56 km/h) | 73.72 mph (118.63 km/h) |
| 65 mph (104.61 km/h) | 79.86 mph (128.52 km/h) |
| 70 mph (112.65 km/h) | 86 mph (138.41 km/h) |
| 75 mph (120.7 km/h) | 92.14 mph (148.29 km/h) |
| 80 mph (128.75 km/h) | 98.29 mph (158.18 km/h) |
| 85 mph (136.79 km/h) | 104.43 mph (168.06 km/h) |
| 90 mph (144.84 km/h) | 110.57 mph (177.95 km/h) |
| 95 mph (152.89 km/h) | 116.72 mph (187.84 km/h) |
| 100 mph (160.93 km/h) | 122.86 mph (197.72 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1493 | 1734 | 1867 | 1950 | 2039 | 2102 | 2172 | 2255 | 2369 | 2483 | 2610 | 2712 | 2896 | 3100 | 3258 | 3360 | 3417 | 3627 | 3919 | 4554 |
Better Fuel Economy Factory Ratios Increased Power
