Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/45-22 | 265/45-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.81 (833.3) | 29.39 (746.5) | -3.42 (-86.8) -10.4% |
| Width inches (mm) | 12.01 (305) | 10.43 (265) | -1.57 (-40) -13.1% |
| Circum. inches (mm) | 103.07 (2617.89) | 92.33 (2345.2) | -10.74 (-272.69) -10.4% |
| Sidewall Height inches (mm) | 5.4 (137.25) | 4.69 (119.25) | -0.71 (-18) -13.1% |
| Revolutions per mile (km) | 614.75 (381.99) | 686.23 (426.4) | 71.48 (44.42) 11.6% |
265/45-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.92 mph (28.83 km/h) |
| 25 mph (40.23 km/h) | 22.4 mph (36.04 km/h) |
| 30 mph (48.28 km/h) | 26.88 mph (43.25 km/h) |
| 35 mph (56.33 km/h) | 31.35 mph (50.46 km/h) |
| 40 mph (64.37 km/h) | 35.83 mph (57.67 km/h) |
| 45 mph (72.42 km/h) | 40.31 mph (64.88 km/h) |
| 50 mph (80.47 km/h) | 44.79 mph (72.09 km/h) |
| 55 mph (88.51 km/h) | 49.27 mph (79.29 km/h) |
| 60 mph (96.56 km/h) | 53.75 mph (86.5 km/h) |
| 65 mph (104.61 km/h) | 58.23 mph (93.71 km/h) |
| 70 mph (112.65 km/h) | 62.71 mph (100.92 km/h) |
| 75 mph (120.7 km/h) | 67.19 mph (108.13 km/h) |
| 80 mph (128.75 km/h) | 71.67 mph (115.34 km/h) |
| 85 mph (136.79 km/h) | 76.15 mph (122.55 km/h) |
| 90 mph (144.84 km/h) | 80.63 mph (129.75 km/h) |
| 95 mph (152.89 km/h) | 85.1 mph (136.96 km/h) |
| 100 mph (160.93 km/h) | 89.58 mph (144.17 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1746 | 2029 | 2185 | 2281 | 2385 | 2460 | 2541 | 2638 | 2772 | 2906 | 3054 | 3173 | 3389 | 3626 | 3812 | 3931 | 3998 | 4243 | 4585 | 5328 |
Better Fuel Economy Factory Ratios Increased Power
