Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/60-20 | 265/50-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.05 (814) | 30.43 (773) | -1.61 (-41) -5% |
| Width inches (mm) | 10.04 (255) | 10.43 (265) | 0.39 (10) 3.9% |
| Circum. inches (mm) | 100.68 (2557.26) | 95.61 (2428.45) | -5.07 (-128.81) -5% |
| Sidewall Height inches (mm) | 6.02 (153) | 5.22 (132.5) | -0.81 (-20.5) -13.4% |
| Revolutions per mile (km) | 629.32 (391.04) | 662.7 (411.78) | 33.38 (20.74) 5.3% |
265/50-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.99 mph (30.57 km/h) |
| 25 mph (40.23 km/h) | 23.74 mph (38.21 km/h) |
| 30 mph (48.28 km/h) | 28.49 mph (45.85 km/h) |
| 35 mph (56.33 km/h) | 33.24 mph (53.49 km/h) |
| 40 mph (64.37 km/h) | 37.99 mph (61.13 km/h) |
| 45 mph (72.42 km/h) | 42.73 mph (68.77 km/h) |
| 50 mph (80.47 km/h) | 47.48 mph (76.41 km/h) |
| 55 mph (88.51 km/h) | 52.23 mph (84.06 km/h) |
| 60 mph (96.56 km/h) | 56.98 mph (91.7 km/h) |
| 65 mph (104.61 km/h) | 61.73 mph (99.34 km/h) |
| 70 mph (112.65 km/h) | 66.47 mph (106.98 km/h) |
| 75 mph (120.7 km/h) | 71.22 mph (114.62 km/h) |
| 80 mph (128.75 km/h) | 75.97 mph (122.26 km/h) |
| 85 mph (136.79 km/h) | 80.72 mph (129.9 km/h) |
| 90 mph (144.84 km/h) | 85.47 mph (137.55 km/h) |
| 95 mph (152.89 km/h) | 90.21 mph (145.19 km/h) |
| 100 mph (160.93 km/h) | 94.96 mph (152.83 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
