Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/65-17 | 265/50-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.03 (737.3) | 30.43 (773) | 1.41 (35.7) 4.8% |
| Width inches (mm) | 9.25 (235) | 10.43 (265) | 1.18 (30) 12.8% |
| Circum. inches (mm) | 91.19 (2316.3) | 95.61 (2428.45) | 4.42 (112.15) 4.8% |
| Sidewall Height inches (mm) | 6.01 (152.75) | 5.22 (132.5) | -0.8 (-20.25) -13.3% |
| Revolutions per mile (km) | 694.79 (431.72) | 662.7 (411.78) | -32.09 (-19.94) -4.6% |
265/50-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.97 mph (33.75 km/h) |
| 25 mph (40.23 km/h) | 26.21 mph (42.18 km/h) |
| 30 mph (48.28 km/h) | 31.45 mph (50.62 km/h) |
| 35 mph (56.33 km/h) | 36.69 mph (59.05 km/h) |
| 40 mph (64.37 km/h) | 41.94 mph (67.49 km/h) |
| 45 mph (72.42 km/h) | 47.18 mph (75.93 km/h) |
| 50 mph (80.47 km/h) | 52.42 mph (84.36 km/h) |
| 55 mph (88.51 km/h) | 57.66 mph (92.8 km/h) |
| 60 mph (96.56 km/h) | 62.91 mph (101.24 km/h) |
| 65 mph (104.61 km/h) | 68.15 mph (109.67 km/h) |
| 70 mph (112.65 km/h) | 73.39 mph (118.11 km/h) |
| 75 mph (120.7 km/h) | 78.63 mph (126.55 km/h) |
| 80 mph (128.75 km/h) | 83.87 mph (134.98 km/h) |
| 85 mph (136.79 km/h) | 89.12 mph (143.42 km/h) |
| 90 mph (144.84 km/h) | 94.36 mph (151.85 km/h) |
| 95 mph (152.89 km/h) | 99.6 mph (160.29 km/h) |
| 100 mph (160.93 km/h) | 104.84 mph (168.73 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
