Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/70-19.5 | 255/70-22.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.9 (810.3) | 36.56 (928.5) | 4.65 (118.2) 14.6% |
| Width inches (mm) | 8.86 (225) | 10.04 (255) | 1.18 (30) 13.3% |
| Circum. inches (mm) | 100.22 (2545.63) | 114.84 (2916.97) | 14.62 (371.34) 14.6% |
| Sidewall Height inches (mm) | 6.2 (157.5) | 7.03 (178.5) | 0.83 (21) 13.3% |
| Revolutions per mile (km) | 632.2 (392.83) | 551.72 (342.82) | -80.48 (-50.01) -12.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.92 mph (36.88 km/h) |
| 25 mph (40.23 km/h) | 28.65 mph (46.1 km/h) |
| 30 mph (48.28 km/h) | 34.38 mph (55.32 km/h) |
| 35 mph (56.33 km/h) | 40.11 mph (64.54 km/h) |
| 40 mph (64.37 km/h) | 45.83 mph (73.76 km/h) |
| 45 mph (72.42 km/h) | 51.56 mph (82.98 km/h) |
| 50 mph (80.47 km/h) | 57.29 mph (92.21 km/h) |
| 55 mph (88.51 km/h) | 63.02 mph (101.43 km/h) |
| 60 mph (96.56 km/h) | 68.75 mph (110.65 km/h) |
| 65 mph (104.61 km/h) | 74.48 mph (119.87 km/h) |
| 70 mph (112.65 km/h) | 80.21 mph (129.09 km/h) |
| 75 mph (120.7 km/h) | 85.94 mph (138.31 km/h) |
| 80 mph (128.75 km/h) | 91.67 mph (147.53 km/h) |
| 85 mph (136.79 km/h) | 97.4 mph (156.75 km/h) |
| 90 mph (144.84 km/h) | 103.13 mph (165.97 km/h) |
| 95 mph (152.89 km/h) | 108.86 mph (175.19 km/h) |
| 100 mph (160.93 km/h) | 114.59 mph (184.41 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
