Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 345/25-20 | 345/20-22 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.79 (680.5) | 27.43 (696.8) | 0.64 (16.3) 2.4% |
| Width inches (mm) | 13.58 (345) | 13.58 (345) | 0 (0) 0% |
| Circum. inches (mm) | 84.17 (2137.85) | 86.18 (2189.06) | 2.02 (51.21) 2.4% |
| Sidewall Height inches (mm) | 3.4 (86.25) | 2.72 (69) | -0.68 (-17.25) -20% |
| Revolutions per mile (km) | 752.78 (467.76) | 735.18 (456.82) | -17.61 (-10.94) -2.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.48 mph (32.96 km/h) |
| 25 mph (40.23 km/h) | 25.6 mph (41.2 km/h) |
| 30 mph (48.28 km/h) | 30.72 mph (49.44 km/h) |
| 35 mph (56.33 km/h) | 35.84 mph (57.68 km/h) |
| 40 mph (64.37 km/h) | 40.96 mph (65.92 km/h) |
| 45 mph (72.42 km/h) | 46.08 mph (74.16 km/h) |
| 50 mph (80.47 km/h) | 51.2 mph (82.39 km/h) |
| 55 mph (88.51 km/h) | 56.32 mph (90.63 km/h) |
| 60 mph (96.56 km/h) | 61.44 mph (98.87 km/h) |
| 65 mph (104.61 km/h) | 66.56 mph (107.11 km/h) |
| 70 mph (112.65 km/h) | 71.68 mph (115.35 km/h) |
| 75 mph (120.7 km/h) | 76.8 mph (123.59 km/h) |
| 80 mph (128.75 km/h) | 81.92 mph (131.83 km/h) |
| 85 mph (136.79 km/h) | 87.04 mph (140.07 km/h) |
| 90 mph (144.84 km/h) | 92.16 mph (148.31 km/h) |
| 95 mph (152.89 km/h) | 97.28 mph (156.55 km/h) |
| 100 mph (160.93 km/h) | 102.4 mph (164.79 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1871 | 2173 | 2341 | 2444 | 2556 | 2635 | 2723 | 2826 | 2970 | 3113 | 3272 | 3399 | 3630 | 3885 | 4084 | 4211 | 4283 | 4546 | 4912 | 5708 |
Better Fuel Economy Factory Ratios Increased Power
