Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/55-18 | 265/50-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.91 (759.7) | 30.43 (773) | 0.52 (13.3) 1.8% |
| Width inches (mm) | 10.83 (275) | 10.43 (265) | -0.39 (-10) -3.6% |
| Circum. inches (mm) | 93.96 (2386.67) | 95.61 (2428.45) | 1.65 (41.78) 1.8% |
| Sidewall Height inches (mm) | 5.95 (151.25) | 5.22 (132.5) | -0.74 (-18.75) -12.4% |
| Revolutions per mile (km) | 674.31 (418.99) | 662.7 (411.78) | -11.6 (-7.21) -1.7% |
265/50-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.35 mph (32.75 km/h) |
| 25 mph (40.23 km/h) | 25.44 mph (40.94 km/h) |
| 30 mph (48.28 km/h) | 30.53 mph (49.13 km/h) |
| 35 mph (56.33 km/h) | 35.61 mph (57.31 km/h) |
| 40 mph (64.37 km/h) | 40.7 mph (65.5 km/h) |
| 45 mph (72.42 km/h) | 45.79 mph (73.69 km/h) |
| 50 mph (80.47 km/h) | 50.88 mph (81.88 km/h) |
| 55 mph (88.51 km/h) | 55.96 mph (90.06 km/h) |
| 60 mph (96.56 km/h) | 61.05 mph (98.25 km/h) |
| 65 mph (104.61 km/h) | 66.14 mph (106.44 km/h) |
| 70 mph (112.65 km/h) | 71.23 mph (114.63 km/h) |
| 75 mph (120.7 km/h) | 76.31 mph (122.81 km/h) |
| 80 mph (128.75 km/h) | 81.4 mph (131 km/h) |
| 85 mph (136.79 km/h) | 86.49 mph (139.19 km/h) |
| 90 mph (144.84 km/h) | 91.58 mph (147.38 km/h) |
| 95 mph (152.89 km/h) | 96.66 mph (155.56 km/h) |
| 100 mph (160.93 km/h) | 101.75 mph (163.75 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1686 | 1959 | 2110 | 2203 | 2304 | 2375 | 2454 | 2548 | 2677 | 2806 | 2950 | 3064 | 3272 | 3502 | 3681 | 3796 | 3861 | 4098 | 4428 | 5145 |
Better Fuel Economy Factory Ratios Increased Power
