Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 345/25-20 | 345/45-22 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.79 (680.5) | 34.22 (869.3) | 7.43 (188.8) 27.7% |
| Width inches (mm) | 13.58 (345) | 13.58 (345) | 0 (0) 0% |
| Circum. inches (mm) | 84.17 (2137.85) | 107.52 (2730.99) | 23.35 (593.13) 27.7% |
| Sidewall Height inches (mm) | 3.4 (86.25) | 6.11 (155.25) | 2.72 (69) 80% |
| Revolutions per mile (km) | 752.78 (467.76) | 589.29 (366.17) | -163.49 (-101.59) -21.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 25.55 mph (41.12 km/h) |
| 25 mph (40.23 km/h) | 31.94 mph (51.4 km/h) |
| 30 mph (48.28 km/h) | 38.32 mph (61.68 km/h) |
| 35 mph (56.33 km/h) | 44.71 mph (71.95 km/h) |
| 40 mph (64.37 km/h) | 51.1 mph (82.23 km/h) |
| 45 mph (72.42 km/h) | 57.48 mph (92.51 km/h) |
| 50 mph (80.47 km/h) | 63.87 mph (102.79 km/h) |
| 55 mph (88.51 km/h) | 70.26 mph (113.07 km/h) |
| 60 mph (96.56 km/h) | 76.65 mph (123.35 km/h) |
| 65 mph (104.61 km/h) | 83.03 mph (133.63 km/h) |
| 70 mph (112.65 km/h) | 89.42 mph (143.91 km/h) |
| 75 mph (120.7 km/h) | 95.81 mph (154.19 km/h) |
| 80 mph (128.75 km/h) | 102.2 mph (164.47 km/h) |
| 85 mph (136.79 km/h) | 108.58 mph (174.75 km/h) |
| 90 mph (144.84 km/h) | 114.97 mph (185.03 km/h) |
| 95 mph (152.89 km/h) | 121.36 mph (195.31 km/h) |
| 100 mph (160.93 km/h) | 127.74 mph (205.58 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1500 | 1742 | 1876 | 1959 | 2048 | 2112 | 2182 | 2265 | 2380 | 2495 | 2623 | 2725 | 2910 | 3114 | 3274 | 3376 | 3433 | 3644 | 3937 | 4575 |
Better Fuel Economy Factory Ratios Increased Power
