Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/50-18 | 275/50-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.04 (712.2) | 28.83 (732.2) | 0.79 (20) 2.8% |
| Width inches (mm) | 10.04 (255) | 10.83 (275) | 0.79 (20) 7.8% |
| Circum. inches (mm) | 88.09 (2237.44) | 90.56 (2300.27) | 2.47 (62.83) 2.8% |
| Sidewall Height inches (mm) | 5.02 (127.5) | 5.41 (137.5) | 0.39 (10) 7.8% |
| Revolutions per mile (km) | 719.28 (446.94) | 699.63 (434.73) | -19.65 (-12.21) -2.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.56 mph (33.09 km/h) |
| 25 mph (40.23 km/h) | 25.7 mph (41.36 km/h) |
| 30 mph (48.28 km/h) | 30.84 mph (49.64 km/h) |
| 35 mph (56.33 km/h) | 35.98 mph (57.91 km/h) |
| 40 mph (64.37 km/h) | 41.12 mph (66.18 km/h) |
| 45 mph (72.42 km/h) | 46.26 mph (74.45 km/h) |
| 50 mph (80.47 km/h) | 51.4 mph (82.73 km/h) |
| 55 mph (88.51 km/h) | 56.54 mph (91 km/h) |
| 60 mph (96.56 km/h) | 61.68 mph (99.27 km/h) |
| 65 mph (104.61 km/h) | 66.83 mph (107.55 km/h) |
| 70 mph (112.65 km/h) | 71.97 mph (115.82 km/h) |
| 75 mph (120.7 km/h) | 77.11 mph (124.09 km/h) |
| 80 mph (128.75 km/h) | 82.25 mph (132.36 km/h) |
| 85 mph (136.79 km/h) | 87.39 mph (140.64 km/h) |
| 90 mph (144.84 km/h) | 92.53 mph (148.91 km/h) |
| 95 mph (152.89 km/h) | 97.67 mph (157.18 km/h) |
| 100 mph (160.93 km/h) | 102.81 mph (165.45 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1780 | 2068 | 2227 | 2326 | 2432 | 2508 | 2591 | 2690 | 2826 | 2962 | 3114 | 3235 | 3455 | 3697 | 3887 | 4008 | 4076 | 4326 | 4675 | 5432 |
Better Fuel Economy Factory Ratios Increased Power
