Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/50-21 | 260/50-21 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.04 (788.4) | 31.24 (793.4) | 0.2 (5) 0.6% |
| Width inches (mm) | 10.04 (255) | 10.24 (260) | 0.2 (5) 2% |
| Circum. inches (mm) | 97.51 (2476.83) | 98.13 (2492.54) | 0.62 (15.71) 0.6% |
| Sidewall Height inches (mm) | 5.02 (127.5) | 5.12 (130) | 0.1 (2.5) 2% |
| Revolutions per mile (km) | 649.76 (403.74) | 645.66 (401.2) | -4.09 (-2.54) -0.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.13 mph (32.39 km/h) |
| 25 mph (40.23 km/h) | 25.16 mph (40.49 km/h) |
| 30 mph (48.28 km/h) | 30.19 mph (48.59 km/h) |
| 35 mph (56.33 km/h) | 35.22 mph (56.68 km/h) |
| 40 mph (64.37 km/h) | 40.25 mph (64.78 km/h) |
| 45 mph (72.42 km/h) | 45.29 mph (72.88 km/h) |
| 50 mph (80.47 km/h) | 50.32 mph (80.98 km/h) |
| 55 mph (88.51 km/h) | 55.35 mph (89.08 km/h) |
| 60 mph (96.56 km/h) | 60.38 mph (97.17 km/h) |
| 65 mph (104.61 km/h) | 65.41 mph (105.27 km/h) |
| 70 mph (112.65 km/h) | 70.44 mph (113.37 km/h) |
| 75 mph (120.7 km/h) | 75.48 mph (121.47 km/h) |
| 80 mph (128.75 km/h) | 80.51 mph (129.56 km/h) |
| 85 mph (136.79 km/h) | 85.54 mph (137.66 km/h) |
| 90 mph (144.84 km/h) | 90.57 mph (145.76 km/h) |
| 95 mph (152.89 km/h) | 95.6 mph (153.86 km/h) |
| 100 mph (160.93 km/h) | 100.63 mph (161.96 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1643 | 1909 | 2056 | 2147 | 2244 | 2314 | 2391 | 2482 | 2608 | 2734 | 2874 | 2986 | 3188 | 3412 | 3587 | 3699 | 3762 | 3992 | 4314 | 5013 |
Better Fuel Economy Factory Ratios Increased Power
