Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 355/25-21 | 165/70-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.99 (710.9) | 22.09 (561.2) | -5.89 (-149.7) -21.1% |
| Width inches (mm) | 13.98 (355) | 6.5 (165) | -7.48 (-190) -53.5% |
| Circum. inches (mm) | 87.93 (2233.36) | 69.41 (1763.06) | -18.52 (-470.3) -21.1% |
| Sidewall Height inches (mm) | 3.49 (88.75) | 4.55 (115.5) | 1.05 (26.75) 30.1% |
| Revolutions per mile (km) | 720.59 (447.76) | 912.81 (567.19) | 192.22 (119.44) 26.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 15.79 mph (25.41 km/h) |
| 25 mph (40.23 km/h) | 19.74 mph (31.76 km/h) |
| 30 mph (48.28 km/h) | 23.68 mph (38.11 km/h) |
| 35 mph (56.33 km/h) | 27.63 mph (44.47 km/h) |
| 40 mph (64.37 km/h) | 31.58 mph (50.82 km/h) |
| 45 mph (72.42 km/h) | 35.52 mph (57.17 km/h) |
| 50 mph (80.47 km/h) | 39.47 mph (63.52 km/h) |
| 55 mph (88.51 km/h) | 43.42 mph (69.87 km/h) |
| 60 mph (96.56 km/h) | 47.37 mph (76.23 km/h) |
| 65 mph (104.61 km/h) | 51.31 mph (82.58 km/h) |
| 70 mph (112.65 km/h) | 55.26 mph (88.93 km/h) |
| 75 mph (120.7 km/h) | 59.21 mph (95.28 km/h) |
| 80 mph (128.75 km/h) | 63.15 mph (101.64 km/h) |
| 85 mph (136.79 km/h) | 67.1 mph (107.99 km/h) |
| 90 mph (144.84 km/h) | 71.05 mph (114.34 km/h) |
| 95 mph (152.89 km/h) | 75 mph (120.69 km/h) |
| 100 mph (160.93 km/h) | 78.94 mph (127.05 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2323 | 2699 | 2906 | 3035 | 3173 | 3272 | 3381 | 3509 | 3687 | 3865 | 4063 | 4221 | 4507 | 4824 | 5071 | 5229 | 5318 | 5644 | 6099 | 7087 |
Better Fuel Economy Factory Ratios Increased Power
