Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 345/25-20 | 345/25-22 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.79 (680.5) | 28.79 (731.3) | 2 (50.8) 7.5% |
| Width inches (mm) | 13.58 (345) | 13.58 (345) | 0 (0) 0% |
| Circum. inches (mm) | 84.17 (2137.85) | 90.45 (2297.45) | 6.28 (159.59) 7.5% |
| Sidewall Height inches (mm) | 3.4 (86.25) | 3.4 (86.25) | 0 (0) 0% |
| Revolutions per mile (km) | 752.78 (467.76) | 700.49 (435.26) | -52.29 (-32.49) -6.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.49 mph (34.59 km/h) |
| 25 mph (40.23 km/h) | 26.87 mph (43.24 km/h) |
| 30 mph (48.28 km/h) | 32.24 mph (51.88 km/h) |
| 35 mph (56.33 km/h) | 37.61 mph (60.53 km/h) |
| 40 mph (64.37 km/h) | 42.99 mph (69.18 km/h) |
| 45 mph (72.42 km/h) | 48.36 mph (77.83 km/h) |
| 50 mph (80.47 km/h) | 53.73 mph (86.47 km/h) |
| 55 mph (88.51 km/h) | 59.11 mph (95.12 km/h) |
| 60 mph (96.56 km/h) | 64.48 mph (103.77 km/h) |
| 65 mph (104.61 km/h) | 69.85 mph (112.42 km/h) |
| 70 mph (112.65 km/h) | 75.23 mph (121.06 km/h) |
| 75 mph (120.7 km/h) | 80.6 mph (129.71 km/h) |
| 80 mph (128.75 km/h) | 85.97 mph (138.36 km/h) |
| 85 mph (136.79 km/h) | 91.35 mph (147.01 km/h) |
| 90 mph (144.84 km/h) | 96.72 mph (155.65 km/h) |
| 95 mph (152.89 km/h) | 102.09 mph (164.3 km/h) |
| 100 mph (160.93 km/h) | 107.47 mph (172.95 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1783 | 2071 | 2230 | 2329 | 2435 | 2511 | 2594 | 2693 | 2829 | 2966 | 3118 | 3239 | 3459 | 3702 | 3891 | 4013 | 4081 | 4331 | 4680 | 5439 |
Better Fuel Economy Factory Ratios Increased Power
