Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 325/70-16 | 255/70-22.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 33.91 (861.4) | 36.56 (928.5) | 2.64 (67.1) 7.8% |
| Width inches (mm) | 12.8 (325) | 10.04 (255) | -2.76 (-70) -21.5% |
| Circum. inches (mm) | 106.54 (2706.17) | 114.84 (2916.97) | 8.3 (210.8) 7.8% |
| Sidewall Height inches (mm) | 8.96 (227.5) | 7.03 (178.5) | -1.93 (-49) -21.5% |
| Revolutions per mile (km) | 594.69 (369.53) | 551.72 (342.82) | -42.98 (-26.7) -7.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.56 mph (34.69 km/h) |
| 25 mph (40.23 km/h) | 26.95 mph (43.37 km/h) |
| 30 mph (48.28 km/h) | 32.34 mph (52.04 km/h) |
| 35 mph (56.33 km/h) | 37.73 mph (60.71 km/h) |
| 40 mph (64.37 km/h) | 43.12 mph (69.39 km/h) |
| 45 mph (72.42 km/h) | 48.51 mph (78.06 km/h) |
| 50 mph (80.47 km/h) | 53.89 mph (86.74 km/h) |
| 55 mph (88.51 km/h) | 59.28 mph (95.41 km/h) |
| 60 mph (96.56 km/h) | 64.67 mph (104.08 km/h) |
| 65 mph (104.61 km/h) | 70.06 mph (112.76 km/h) |
| 70 mph (112.65 km/h) | 75.45 mph (121.43 km/h) |
| 75 mph (120.7 km/h) | 80.84 mph (130.1 km/h) |
| 80 mph (128.75 km/h) | 86.23 mph (138.78 km/h) |
| 85 mph (136.79 km/h) | 91.62 mph (147.45 km/h) |
| 90 mph (144.84 km/h) | 97.01 mph (156.12 km/h) |
| 95 mph (152.89 km/h) | 102.4 mph (164.8 km/h) |
| 100 mph (160.93 km/h) | 107.79 mph (173.47 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1404 | 1631 | 1757 | 1834 | 1918 | 1978 | 2043 | 2121 | 2229 | 2336 | 2456 | 2551 | 2724 | 2916 | 3065 | 3161 | 3214 | 3411 | 3686 | 4284 |
Better Fuel Economy Factory Ratios Increased Power
