Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 355/25-21 | 33/16.5-22 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.99 (710.9) | 32.89 (835.34) | 4.9 (124.44) 17.5% |
| Width inches (mm) | 13.98 (355) | 16.5 (419) | 2.52 (64) 18% |
| Circum. inches (mm) | 87.93 (2233.36) | 103.32 (2624.3) | 15.39 (390.94) 17.5% |
| Sidewall Height inches (mm) | 3.49 (88.75) | 5.44 (138.27) | 1.95 (49.52) 55.8% |
| Revolutions per mile (km) | 720.59 (447.76) | 613.25 (381.05) | -107.35 (-66.7) -14.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.5 mph (37.82 km/h) |
| 25 mph (40.23 km/h) | 29.38 mph (47.28 km/h) |
| 30 mph (48.28 km/h) | 35.25 mph (56.73 km/h) |
| 35 mph (56.33 km/h) | 41.13 mph (66.19 km/h) |
| 40 mph (64.37 km/h) | 47 mph (75.64 km/h) |
| 45 mph (72.42 km/h) | 52.88 mph (85.1 km/h) |
| 50 mph (80.47 km/h) | 58.75 mph (94.55 km/h) |
| 55 mph (88.51 km/h) | 64.63 mph (104.01 km/h) |
| 60 mph (96.56 km/h) | 70.5 mph (113.46 km/h) |
| 65 mph (104.61 km/h) | 76.38 mph (122.92 km/h) |
| 70 mph (112.65 km/h) | 82.25 mph (132.37 km/h) |
| 75 mph (120.7 km/h) | 88.13 mph (141.83 km/h) |
| 80 mph (128.75 km/h) | 94 mph (151.28 km/h) |
| 85 mph (136.79 km/h) | 99.88 mph (160.74 km/h) |
| 90 mph (144.84 km/h) | 105.75 mph (170.2 km/h) |
| 95 mph (152.89 km/h) | 111.63 mph (179.65 km/h) |
| 100 mph (160.93 km/h) | 117.5 mph (189.11 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1561 | 1813 | 1952 | 2039 | 2132 | 2198 | 2271 | 2357 | 2477 | 2597 | 2729 | 2836 | 3028 | 3241 | 3407 | 3513 | 3573 | 3792 | 4097 | 4761 |
Better Fuel Economy Factory Ratios Increased Power
